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Schedule III - Real Estate and Accumulated Depreciation (Details) | 12 Months Ended |  |  |
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Dec. 31, 2021 USD ($) ApartmentUnit | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Accumulated Depreciation | $ (8,354,282,000) | $ (7,859,657,000) | $ (7,276,786,000) | $ (6,696,281,000)
100 K Apartments (fka 100K Street) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 222 |  |  |
Initial Cost to Company, Land | $ 15,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 70,296,069 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 80,503 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 70,376,572 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 85,976,572 |  |  |
Accumulated Depreciation | (9,006,912) |  |  |
Investment in Real Estate, Net | 76,969,660 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
140 Riverside Boulevard [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 354 |  |  |
Initial Cost to Company, Land | $ 103,539,100 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 94,082,725 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,259,577 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 103,539,100 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 105,342,302 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 208,881,402 |  |  |
Accumulated Depreciation | (60,169,233) |  |  |
Investment in Real Estate, Net | 148,712,169 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
160 Riverside Boulevard [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 455 |  |  |
Initial Cost to Company, Land | $ 139,933,500 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 190,964,745 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 18,648,569 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 139,933,500 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 209,613,314 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 349,546,814 |  |  |
Accumulated Depreciation | (119,792,673) |  |  |
Investment in Real Estate, Net | 229,754,141 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
170 Amsterdam [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 236 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 112,096,955 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 758,783 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 112,855,738 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 112,855,738 |  |  |
Accumulated Depreciation | (29,560,885) |  |  |
Investment in Real Estate, Net | 83,294,853 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
175 Kent [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Brooklyn, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 113 |  |  |
Initial Cost to Company, Land | $ 22,037,831 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 53,962,169 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,645,841 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 22,037,831 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 56,608,010 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 78,645,841 |  |  |
Accumulated Depreciation | (22,155,198) |  |  |
Investment in Real Estate, Net | 56,490,643 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
180 Montague (fka Brooklyn Heights) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Brooklyn, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 193 |  |  |
Initial Cost to Company, Land | $ 32,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 92,675,228 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,658,812 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 98,334,040 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 130,734,040 |  |  |
Accumulated Depreciation | (34,293,888) |  |  |
Investment in Real Estate, Net | 96,440,152 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
180 Riverside Boulevard [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 516 |  |  |
Initial Cost to Company, Land | $ 144,968,250 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 138,346,681 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 19,787,240 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 144,968,250 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 158,133,921 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 303,102,171 |  |  |
Accumulated Depreciation | (89,675,680) |  |  |
Investment in Real Estate, Net | 213,426,491 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
1210 Mass [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 144 |  |  |
Initial Cost to Company, Land | $ 9,213,512 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,559,189 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,143,076 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,213,512 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 40,702,265 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 49,915,777 |  |  |
Accumulated Depreciation | (23,095,902) |  |  |
Investment in Real Estate, Net | 26,819,875 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
1401 Joyce on Pentagon Row [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 326 |  |  |
Initial Cost to Company, Land | $ 9,780,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 89,668,165 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,800,708 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,780,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 95,468,873 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 105,248,873 |  |  |
Accumulated Depreciation | (44,718,792) |  |  |
Investment in Real Estate, Net | 60,530,081 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
1500 Mass Ave [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 556 |  |  |
Initial Cost to Company, Land | $ 54,638,298 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,361,702 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 17,093,200 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 54,638,298 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 57,454,902 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 112,093,200 |  |  |
Accumulated Depreciation | (33,979,290) |  |  |
Investment in Real Estate, Net | 78,113,910 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
1800 Oak (fka Rosslyn) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 314 |  |  |
Initial Cost to Company, Land | $ 31,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 109,005,734 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,759,712 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 31,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 119,765,446 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 151,165,446 |  |  |
Accumulated Depreciation | (42,105,522) |  |  |
Investment in Real Estate, Net | 109,059,924 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
2201 Pershing Drive [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 188 |  |  |
Initial Cost to Company, Land | $ 11,321,198 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 49,674,175 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,031,770 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,321,198 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 52,705,945 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 64,027,143 |  |  |
Accumulated Depreciation | (19,161,188) |  |  |
Investment in Real Estate, Net | 44,865,955 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
2201 Wilson [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 219 |  |  |
Initial Cost to Company, Land | $ 21,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 78,724,663 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,665,866 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 21,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 85,390,529 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 107,290,529 |  |  |
Accumulated Depreciation | (29,690,417) |  |  |
Investment in Real Estate, Net | 77,600,112 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
2400 M St [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 359 |  |  |
Initial Cost to Company, Land | $ 30,006,593 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 114,013,785 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,972,552 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 30,006,593 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 118,986,337 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 148,992,930 |  |  |
Accumulated Depreciation | (65,723,407) |  |  |
Investment in Real Estate, Net | 83,269,523 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
315 on A [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 202 |  |  |
Initial Cost to Company, Land | $ 14,450,070 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 115,824,930 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,553,517 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,450,070 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 117,378,447 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 131,828,517 |  |  |
Accumulated Depreciation | (31,402,367) |  |  |
Investment in Real Estate, Net | 100,426,150 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
340 Fremont (fka Rincon Hill) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 348 |  |  |
Initial Cost to Company, Land | $ 42,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 248,607,902 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 501,737 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 42,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 249,109,639 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 291,109,639 |  |  |
Accumulated Depreciation | (52,713,886) |  |  |
Investment in Real Estate, Net | 238,395,753 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
341 Nevins [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Brooklyn, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 3,621,717 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 299,143 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,621,717 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 299,143 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 3,920,860 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 3,920,860 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
3003 Van Ness (fka Van Ness) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 625 |  |  |
Initial Cost to Company, Land | $ 56,300,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 141,191,580 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,574,525 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 56,300,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 150,766,105 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 207,066,105 |  |  |
Accumulated Depreciation | (54,530,411) |  |  |
Investment in Real Estate, Net | 152,535,694 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
425 Mass [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 559 |  |  |
Initial Cost to Company, Land | $ 28,150,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 138,600,000 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,876,074 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 28,150,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 145,476,074 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 173,626,074 |  |  |
Accumulated Depreciation | (63,089,507) |  |  |
Investment in Real Estate, Net | 110,536,567 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
455 Eye Street [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 174 |  |  |
Initial Cost to Company, Land | $ 11,941,407 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,418,689 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 133,247 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,941,407 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 61,551,936 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 73,493,343 |  |  |
Accumulated Depreciation | (10,963,269) |  |  |
Investment in Real Estate, Net | 62,530,074 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
4th and Hill [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 13,131,456 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,868,544 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,131,456 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 1,868,544 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 15,000,000 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 15,000,000 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
55 West Fifth I & II (fka Townhouse Plaza and Gardens) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Mateo, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 241 |  |  |
Initial Cost to Company, Land | $ 21,041,710 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 71,931,323 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 15,165,469 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 21,041,710 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 87,096,792 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 108,138,502 |  |  |
Accumulated Depreciation | (36,196,476) |  |  |
Investment in Real Estate, Net | 71,942,026 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
600 Washington [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 135 |  |  |
Initial Cost to Company, Land | $ 32,852,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,140,551 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,632,257 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,852,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 46,772,808 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 79,624,808 |  |  |
Accumulated Depreciation | (25,544,371) |  |  |
Investment in Real Estate, Net | 54,080,437 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
660 Washington (fka Boston Common) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 420 |  |  |
Initial Cost to Company, Land | $ 106,100,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 166,311,679 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,878,053 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 106,100,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 178,189,732 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 284,289,732 |  |  |
Accumulated Depreciation | (59,198,371) |  |  |
Investment in Real Estate, Net | 225,091,361 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
70 Greene [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Jersey City, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 480 |  |  |
Initial Cost to Company, Land | $ 28,108,899 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 236,763,553 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,657,362 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 28,108,899 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 241,420,915 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 269,529,814 |  |  |
Accumulated Depreciation | (98,364,599) |  |  |
Investment in Real Estate, Net | 171,165,215 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
71 Broadway [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 238 |  |  |
Initial Cost to Company, Land | $ 22,611,600 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 77,492,171 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 20,626,142 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 22,611,600 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 98,118,313 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 120,729,913 |  |  |
Accumulated Depreciation | (59,615,389) |  |  |
Investment in Real Estate, Net | 61,114,524 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
77 Bluxome [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 102 |  |  |
Initial Cost to Company, Land | $ 5,249,124 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,609,876 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 604,943 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,249,124 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 19,214,819 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 24,463,943 |  |  |
Accumulated Depreciation | (7,624,709) |  |  |
Investment in Real Estate, Net | 16,839,234 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
77 Park Avenue (fka Hoboken) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Hoboken, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 301 |  |  |
Initial Cost to Company, Land | $ 27,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 168,992,440 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,369,855 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 27,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 179,362,295 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 207,262,295 |  |  |
Accumulated Depreciation | (60,865,749) |  |  |
Investment in Real Estate, Net | 146,396,546 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
777 Sixth [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 294 |  |  |
Initial Cost to Company, Land | $ 65,352,706 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 65,747,294 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,035,138 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 65,352,706 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 71,782,432 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 137,135,138 |  |  |
Accumulated Depreciation | (35,483,508) |  |  |
Investment in Real Estate, Net | 101,651,630 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
88 Hillside [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Daly City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 95 |  |  |
Initial Cost to Company, Land | $ 7,786,800 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,587,325 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,723,049 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,786,800 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 35,310,374 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 43,097,174 |  |  |
Accumulated Depreciation | (14,208,098) |  |  |
Investment in Real Estate, Net | 28,889,076 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
855 Brannan [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 449 |  |  |
Initial Cost to Company, Land | $ 41,363,921 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 282,738,324 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 420,418 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 41,363,921 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 283,158,742 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 324,522,663 |  |  |
Accumulated Depreciation | (46,006,671) |  |  |
Investment in Real Estate, Net | 278,515,992 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
929 Mass (fka 929 House) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cambridge, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 127 |  |  |
Initial Cost to Company, Land | $ 3,252,993 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,745,595 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,984,103 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,252,993 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 30,729,698 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 33,982,691 |  |  |
Accumulated Depreciation | (22,259,777) |  |  |
Investment in Real Estate, Net | 11,722,914 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Academy Village [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | North Hollywood, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 248 |  |  |
Initial Cost to Company, Land | $ 25,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,593,194 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,983,148 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 25,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 35,576,342 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 60,576,342 |  |  |
Accumulated Depreciation | (22,857,050) |  |  |
Investment in Real Estate, Net | 37,719,292 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Acappella [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Pasadena, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 143 |  |  |
Initial Cost to Company, Land | $ 5,839,548 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,360,452 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,459,547 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,839,548 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,819,999 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 37,659,547 |  |  |
Accumulated Depreciation | (14,549,362) |  |  |
Investment in Real Estate, Net | 23,110,185 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Alban Towers [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 229 |  |  |
Initial Cost to Company, Land | $ 18,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 89,794,201 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,420,013 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 97,214,214 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 116,114,214 |  |  |
Accumulated Depreciation | (33,052,284) |  |  |
Investment in Real Estate, Net | 83,061,930 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Alborada [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Fremont, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 442 |  |  |
Initial Cost to Company, Land | $ 24,310,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 59,214,129 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,938,962 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 24,310,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 69,153,091 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 93,463,091 |  |  |
Accumulated Depreciation | (49,918,901) |  |  |
Investment in Real Estate, Net | 43,544,190 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Alcott Apartments (fka West End Tower) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 470 |  |  |
Initial Cost to Company, Land | $ 10,424,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 387,714,090 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 36,889 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,424,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 387,750,979 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 398,174,979 |  |  |
Accumulated Depreciation | (2,677,353) |  |  |
Investment in Real Estate, Net | 395,497,626 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Altitude (fka Village at Howard Hughes, The (Lots 1 & 2)) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 545 |  |  |
Initial Cost to Company, Land | $ 43,783,485 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 150,234,305 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 678,439 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 43,783,485 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 150,912,744 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 194,696,229 |  |  |
Accumulated Depreciation | (32,898,128) |  |  |
Investment in Real Estate, Net | 161,798,101 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Alton, The (fka Millikan) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Irvine, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 344 |  |  |
Initial Cost to Company, Land | $ 11,049,027 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 96,523,928 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 322,646 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,049,027 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 96,846,574 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 107,895,601 |  |  |
Accumulated Depreciation | (19,309,890) |  |  |
Investment in Real Estate, Net | 88,585,711 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Arbor Terrace [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Sunnyvale, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 175 |  |  |
Initial Cost to Company, Land | $ 9,057,300 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,483,642 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 12,379,831 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,057,300 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 30,863,473 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 39,920,773 |  |  |
Accumulated Depreciation | (21,254,285) |  |  |
Investment in Real Estate, Net | 18,666,488 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Arches,The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Sunnyvale, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 410 |  |  |
Initial Cost to Company, Land | $ 26,650,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 62,850,000 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,419,103 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 26,650,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 67,269,103 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 93,919,103 |  |  |
Accumulated Depreciation | (29,273,217) |  |  |
Investment in Real Estate, Net | 64,645,886 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Artisan on Second [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 118 |  |  |
Initial Cost to Company, Land | $ 8,000,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,074,600 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,450,981 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,000,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 37,525,581 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 45,525,981 |  |  |
Accumulated Depreciation | (15,416,946) |  |  |
Investment in Real Estate, Net | 30,109,035 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Artistry Emeryville (fka Emeryville) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Emeryville, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 267 |  |  |
Initial Cost to Company, Land | $ 12,300,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,466,267 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,257,635 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,300,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 69,723,902 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 82,023,902 |  |  |
Accumulated Depreciation | (26,696,773) |  |  |
Investment in Real Estate, Net | 55,327,129 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Atelier [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Brooklyn, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 120 |  |  |
Initial Cost to Company, Land | $ 32,401,680 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,135,432 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 681,890 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,401,680 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 47,817,322 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 80,219,002 |  |  |
Accumulated Depreciation | (12,033,060) |  |  |
Investment in Real Estate, Net | 68,185,942 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Avenue Two [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redwood City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 123 |  |  |
Initial Cost to Company, Land | $ 7,995,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,005,000 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,841,937 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,995,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 20,846,937 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 28,841,937 |  |  |
Accumulated Depreciation | (9,223,132) |  |  |
Investment in Real Estate, Net | 19,618,805 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Axis at Shady Grove [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Rockville, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 366 |  |  |
Initial Cost to Company, Land | $ 14,745,774 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 90,503,831 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 376,262 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,745,774 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 90,880,093 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 105,625,867 |  |  |
Accumulated Depreciation | (15,555,350) |  |  |
Investment in Real Estate, Net | 90,070,517 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Azure (fka Mission Bay-Block 13) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 273 |  |  |
Initial Cost to Company, Land | $ 32,855,115 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 153,566,841 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 893,636 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,855,115 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 154,460,477 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 187,315,592 |  |  |
Accumulated Depreciation | (36,744,242) |  |  |
Investment in Real Estate, Net | 150,571,350 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Bay Hill [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Long Beach, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 160 |  |  |
Initial Cost to Company, Land | $ 7,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,437,239 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,499,065 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,936,304 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 39,536,304 |  |  |
Accumulated Depreciation | (19,233,962) |  |  |
Investment in Real Estate, Net | 20,302,342 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Beatrice, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 302 |  |  |
Initial Cost to Company, Land | $ 114,351,405 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 165,648,595 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,092,110 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 114,351,405 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 168,740,705 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 283,092,110 |  |  |
Accumulated Depreciation | (62,467,433) |  |  |
Investment in Real Estate, Net | 220,624,677 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Bella Vista I, II, III Combined [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Woodland Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 579 |  |  |
Initial Cost to Company, Land | $ 31,682,754 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 121,095,786 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,565,891 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 31,682,754 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 132,661,677 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 164,344,431 |  |  |
Accumulated Depreciation | (73,507,308) |  |  |
Investment in Real Estate, Net | 90,837,123 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Belle Arts Condominium Homes, LLC [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bellevue, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 1 |  |  |
Initial Cost to Company, Land | $ 63,158 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 236,157 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,098 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 63,158 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 238,255 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 301,413 |  |  |
Accumulated Depreciation | (108,223) |  |  |
Investment in Real Estate, Net | 193,190 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Bella Fontaine [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Marina Del Rey, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 102 |  |  |
Initial Cost to Company, Land | $ 9,098,808 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,701,192 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,487,041 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,098,808 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,188,233 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 40,287,041 |  |  |
Accumulated Depreciation | (12,139,945) |  |  |
Investment in Real Estate, Net | 28,147,096 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Breakwater at Marina Del Rey [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Marina Del Rey, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 224 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 73,189,262 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,593,029 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 75,782,291 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 75,782,291 |  |  |
Accumulated Depreciation | (27,700,597) |  |  |
Investment in Real Estate, Net | 48,081,694 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Briarwood (CA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Sunnyvale, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 192 |  |  |
Initial Cost to Company, Land | $ 9,991,500 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,247,278 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,532,523 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,991,500 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 26,779,801 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 36,771,301 |  |  |
Accumulated Depreciation | (21,134,083) |  |  |
Investment in Real Estate, Net | 15,637,218 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Brodie, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Westminster, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 312 |  |  |
Initial Cost to Company, Land | $ 8,639,904 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 79,256,940 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 947,949 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,639,904 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 80,204,889 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 88,844,793 |  |  |
Accumulated Depreciation | (12,775,088) |  |  |
Investment in Real Estate, Net | 76,069,705 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Brooklyner, The (fka 111 Lawrence). [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Brooklyn, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 490 |  |  |
Initial Cost to Company, Land | $ 40,099,922 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 221,438,631 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,655,023 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 40,099,922 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 227,093,654 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 267,193,576 |  |  |
Accumulated Depreciation | (85,848,149) |  |  |
Investment in Real Estate, Net | 181,345,427 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
C on Pico [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 94 |  |  |
Initial Cost to Company, Land | $ 17,125,766 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,074,234 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 661,321 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 17,125,766 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,735,555 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 45,861,321 |  |  |
Accumulated Depreciation | (7,175,224) |  |  |
Investment in Real Estate, Net | 38,686,097 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Carlyle Mill [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alexandria, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 317 |  |  |
Initial Cost to Company, Land | $ 10,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 51,367,913 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,986,014 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 61,353,927 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 71,353,927 |  |  |
Accumulated Depreciation | (39,619,406) |  |  |
Investment in Real Estate, Net | 31,734,521 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Carmel Terrace [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 384 |  |  |
Initial Cost to Company, Land | $ 2,288,300 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,596,281 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,182,734 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 2,288,300 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 33,779,015 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 36,067,315 |  |  |
Accumulated Depreciation | (30,571,076) |  |  |
Investment in Real Estate, Net | 5,496,239 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Cascade [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 477 |  |  |
Initial Cost to Company, Land | $ 23,751,564 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 149,456,311 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 145,743 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 23,751,564 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 149,602,054 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 173,353,618 |  |  |
Accumulated Depreciation | (26,437,276) |  |  |
Investment in Real Estate, Net | 146,916,342 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Centennial (fka Centennial Court & Centennial Tower) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 408 |  |  |
Initial Cost to Company, Land | $ 9,700,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 70,080,378 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 15,453,455 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,700,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 85,533,833 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 95,233,833 |  |  |
Accumulated Depreciation | (51,055,366) |  |  |
Investment in Real Estate, Net | 44,178,467 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Centre Club Combined [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Ontario, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 412 |  |  |
Initial Cost to Company, Land | $ 7,436,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,014,789 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,252,175 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,436,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 43,266,964 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 50,702,964 |  |  |
Accumulated Depreciation | (30,268,211) |  |  |
Investment in Real Estate, Net | 20,434,753 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Chelsea Square [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redmond, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 113 |  |  |
Initial Cost to Company, Land | $ 3,397,100 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,289,074 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,146,126 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,397,100 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 12,435,200 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 15,832,300 |  |  |
Accumulated Depreciation | (9,742,785) |  |  |
Investment in Real Estate, Net | 6,089,515 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Chloe on Madison (fka 1401 E. Madison) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 137 |  |  |
Initial Cost to Company, Land | $ 10,401,958 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 53,807,106 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 32,014 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,401,958 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 53,839,120 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 64,241,078 |  |  |
Accumulated Depreciation | (4,838,864) |  |  |
Investment in Real Estate, Net | 59,402,214 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Chloe on Union (fka Chloe) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 117 |  |  |
Initial Cost to Company, Land | $ 14,835,571 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 39,359,650 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,970,001 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,835,571 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 42,329,651 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 57,165,222 |  |  |
Accumulated Depreciation | (8,287,738) |  |  |
Investment in Real Estate, Net | 48,877,484 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Church Corner [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cambridge, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 85 |  |  |
Initial Cost to Company, Land | $ 5,220,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,744,643 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,484,815 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,220,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 20,229,458 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 25,449,458 |  |  |
Accumulated Depreciation | (12,559,847) |  |  |
Investment in Real Estate, Net | 12,889,611 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Circa Fitzsimons [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Denver, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 280 |  |  |
Initial Cost to Company, Land | $ 9,241,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 86,070,796 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 319,011 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,241,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 86,389,807 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 95,631,207 |  |  |
Accumulated Depreciation | (4,153,312) |  |  |
Investment in Real Estate, Net | 91,477,895 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
City Gate at Cupertino (fka Cupertino) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cupertino, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 311 |  |  |
Initial Cost to Company, Land | $ 40,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 95,937,046 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,939,273 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 40,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 103,876,319 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 144,276,319 |  |  |
Accumulated Depreciation | (37,159,709) |  |  |
Investment in Real Estate, Net | 107,116,610 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
City Square Bellevue (fka Bellevue) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bellevue, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 191 |  |  |
Initial Cost to Company, Land | $ 15,100,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 41,876,257 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,017,150 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,100,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 45,893,407 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 60,993,407 |  |  |
Accumulated Depreciation | (16,856,049) |  |  |
Investment in Real Estate, Net | 44,137,358 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Clarendon, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 292 |  |  |
Initial Cost to Company, Land | $ 30,400,340 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 103,824,660 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,937,604 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 30,400,340 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 106,762,264 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 137,162,604 |  |  |
Accumulated Depreciation | (43,908,001) |  |  |
Investment in Real Estate, Net | 93,254,603 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Cleo, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 92 |  |  |
Initial Cost to Company, Land | $ 6,615,467 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,829,335 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,392,656 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,615,467 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 19,221,991 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 25,837,458 |  |  |
Accumulated Depreciation | (10,957,338) |  |  |
Investment in Real Estate, Net | 14,880,120 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Connecticut Heights [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 518 |  |  |
Initial Cost to Company, Land | $ 27,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 114,002,295 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,168,810 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 27,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 125,171,105 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 152,771,105 |  |  |
Accumulated Depreciation | (43,749,160) |  |  |
Investment in Real Estate, Net | 109,021,945 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Corcoran House at DuPont Circle (fka DuPont Circle) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 138 |  |  |
Initial Cost to Company, Land | $ 13,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,913,113 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,679,308 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,592,421 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 45,092,421 |  |  |
Accumulated Depreciation | (11,417,114) |  |  |
Investment in Real Estate, Net | 33,675,307 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Courthouse Plaza [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 396 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 87,386,024 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,944,020 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 95,330,044 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 95,330,044 |  |  |
Accumulated Depreciation | (35,422,571) |  |  |
Investment in Real Estate, Net | 59,907,473 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Creekside (San Mateo) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Mateo, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 192 |  |  |
Initial Cost to Company, Land | $ 9,606,600 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,193,232 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,859,790 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,606,600 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 27,053,022 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 36,659,622 |  |  |
Accumulated Depreciation | (21,045,859) |  |  |
Investment in Real Estate, Net | 15,613,763 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Cronins Landing [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Waltham, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 281 |  |  |
Initial Cost to Company, Land | $ 32,300,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 85,119,324 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 14,041,974 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,300,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 99,161,298 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 131,461,298 |  |  |
Accumulated Depreciation | (35,545,036) |  |  |
Investment in Real Estate, Net | 95,916,262 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Crystal Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 181 |  |  |
Initial Cost to Company, Land | $ 17,200,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,918,975 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,182,311 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 17,200,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 52,101,286 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 69,301,286 |  |  |
Accumulated Depreciation | (19,499,819) |  |  |
Investment in Real Estate, Net | 49,801,467 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Dalton, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alexandria, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 270 |  |  |
Initial Cost to Company, Land | $ 22,947,777 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 95,334,754 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 144,951 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 22,947,777 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 95,479,705 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 118,427,482 |  |  |
Accumulated Depreciation | (10,821,659) |  |  |
Investment in Real Estate, Net | 107,605,823 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Deerwood (SD) |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 316 |  |  |
Initial Cost to Company, Land | $ 2,082,095 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,739,815 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 17,201,750 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 2,082,095 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 35,941,565 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 38,023,660 |  |  |
Accumulated Depreciation | (32,390,313) |  |  |
Investment in Real Estate, Net | 5,633,347 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Del Mar Ridge [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 181 |  |  |
Initial Cost to Company, Land | $ 7,801,824 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,948,176 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,673,335 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,801,824 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 41,621,511 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 49,423,335 |  |  |
Accumulated Depreciation | (20,504,751) |  |  |
Investment in Real Estate, Net | 28,918,584 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Eagle Canyon [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chino Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 252 |  |  |
Initial Cost to Company, Land | $ 1,808,900 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,274,361 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,895,689 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,808,900 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,170,050 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 29,978,950 |  |  |
Accumulated Depreciation | (23,146,239) |  |  |
Investment in Real Estate, Net | 6,832,711 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Edge, The (fka 4885 Edgemoor Lane) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bethesda, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 154 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 73,090,698 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 73,090,698 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 73,090,698 |  |  |
Accumulated Depreciation | (1,337,668) |  |  |
Investment in Real Estate, Net | 71,753,030 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Edgemont at Bethesda Metro [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bethesda, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 122 |  |  |
Initial Cost to Company, Land | $ 13,092,552 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,907,448 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,598,672 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,092,552 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 47,506,120 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 60,598,672 |  |  |
Accumulated Depreciation | (18,431,823) |  |  |
Investment in Real Estate, Net | 42,166,849 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Emerson Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 444 |  |  |
Initial Cost to Company, Land | $ 14,855,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 57,566,636 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 37,319,848 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,855,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 94,886,484 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 109,741,484 |  |  |
Accumulated Depreciation | (72,262,761) |  |  |
Investment in Real Estate, Net | 37,478,723 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Encore at Sherman Oaks, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Sherman Oaks, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 174 |  |  |
Initial Cost to Company, Land | $ 8,700,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,446,003 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,699,461 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,700,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 30,145,464 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 38,845,464 |  |  |
Accumulated Depreciation | (13,117,331) |  |  |
Investment in Real Estate, Net | 25,728,133 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Eviva on Cherokee [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Denver, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 274 |  |  |
Initial Cost to Company, Land | $ 10,507,626 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 100,037,204 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 928,435 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,507,626 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 100,965,639 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 111,473,265 |  |  |
Accumulated Depreciation | (14,488,506) |  |  |
Investment in Real Estate, Net | 96,984,759 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Flora [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Austin, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 194 |  |  |
Initial Cost to Company, Land | $ 5,733,088 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 32,341,897 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 33,274 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,733,088 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 32,375,171 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 38,108,259 |  |  |
Accumulated Depreciation | (2,351,033) |  |  |
Investment in Real Estate, Net | 35,757,226 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Fremont Center [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Fremont, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 322 |  |  |
Initial Cost to Company, Land | $ 25,800,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 78,753,114 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,432,484 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 25,800,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 84,185,598 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 109,985,598 |  |  |
Accumulated Depreciation | (30,713,571) |  |  |
Investment in Real Estate, Net | 79,272,027 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Gaithersburg Station [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Gaithersburg, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 400 |  |  |
Initial Cost to Company, Land | $ 17,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 74,678,917 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,910,339 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 17,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 79,589,256 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 97,089,256 |  |  |
Accumulated Depreciation | (26,550,891) |  |  |
Investment in Real Estate, Net | 70,538,365 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Gateway at Malden Center [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Malden, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 203 |  |  |
Initial Cost to Company, Land | $ 9,209,780 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,722,666 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 18,179,307 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,209,780 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 43,901,973 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 53,111,753 |  |  |
Accumulated Depreciation | (30,509,820) |  |  |
Investment in Real Estate, Net | 22,601,933 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Geary Court Yard [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 165 |  |  |
Initial Cost to Company, Land | $ 1,722,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,471,429 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,418,695 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,722,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 21,890,124 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 23,612,524 |  |  |
Accumulated Depreciation | (17,437,666) |  |  |
Investment in Real Estate, Net | 6,174,858 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Girard [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 160 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 102,450,328 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 987,940 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 103,438,268 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 103,438,268 |  |  |
Accumulated Depreciation | (18,672,977) |  |  |
Investment in Real Estate, Net | 84,765,291 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Hampshire Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 259 |  |  |
Initial Cost to Company, Land | $ 10,806,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 30,335,330 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,226,550 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,806,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 39,561,880 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 50,367,880 |  |  |
Accumulated Depreciation | (23,198,296) |  |  |
Investment in Real Estate, Net | 27,169,584 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Harbor Steps [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 761 |  |  |
Initial Cost to Company, Land | $ 59,403,601 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 158,829,432 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 44,513,593 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 59,403,601 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 203,343,025 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 262,746,626 |  |  |
Accumulated Depreciation | (114,985,651) |  |  |
Investment in Real Estate, Net | 147,760,975 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Hathaway [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Long Beach, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 385 |  |  |
Initial Cost to Company, Land | $ 2,512,500 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,611,912 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 15,153,674 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 2,512,500 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 37,765,586 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 40,278,086 |  |  |
Accumulated Depreciation | (30,134,333) |  |  |
Investment in Real Estate, Net | 10,143,753 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Helios (fka 2nd+Pine) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 398 |  |  |
Initial Cost to Company, Land | $ 18,061,674 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 206,766,901 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 312,408 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,061,674 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 207,079,309 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 225,140,983 |  |  |
Accumulated Depreciation | (36,567,089) |  |  |
Investment in Real Estate, Net | 188,573,894 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Heritage at Stone Ridge [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Burlington, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 180 |  |  |
Initial Cost to Company, Land | $ 10,800,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,808,335 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,752,471 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,800,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 35,560,806 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 46,360,806 |  |  |
Accumulated Depreciation | (20,282,031) |  |  |
Investment in Real Estate, Net | 26,078,775 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Heritage Ridge [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Lynwood, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 197 |  |  |
Initial Cost to Company, Land | $ 6,895,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,983,597 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,870,503 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,895,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 23,854,100 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 30,749,100 |  |  |
Accumulated Depreciation | (13,956,897) |  |  |
Investment in Real Estate, Net | 16,792,203 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Hesby [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | North Hollywood, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 308 |  |  |
Initial Cost to Company, Land | $ 23,299,892 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 102,700,108 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,729,069 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 23,299,892 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 105,429,177 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 128,729,069 |  |  |
Accumulated Depreciation | (32,170,802) |  |  |
Investment in Real Estate, Net | 96,558,267 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Highlands at South Plainfield [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | South Plainfield, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 252 |  |  |
Initial Cost to Company, Land | $ 10,080,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 37,526,912 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,230,733 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,080,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 40,757,645 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 50,837,645 |  |  |
Accumulated Depreciation | (23,217,224) |  |  |
Investment in Real Estate, Net | 27,620,421 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Hikari [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 128 |  |  |
Initial Cost to Company, Land | $ 9,435,760 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 32,564,240 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,453,552 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,435,760 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 34,017,792 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 43,453,552 |  |  |
Accumulated Depreciation | (13,835,502) |  |  |
Investment in Real Estate, Net | 29,618,050 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Hudson Crossing [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 259 |  |  |
Initial Cost to Company, Land | $ 23,420,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 69,977,699 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,571,165 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 23,420,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 73,548,864 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 96,968,864 |  |  |
Accumulated Depreciation | (43,605,553) |  |  |
Investment in Real Estate, Net | 53,363,311 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Hudson Pointe [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Jersey City, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 182 |  |  |
Initial Cost to Company, Land | $ 5,350,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 41,114,074 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,229,014 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,350,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 49,343,088 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 54,693,088 |  |  |
Accumulated Depreciation | (30,026,653) |  |  |
Investment in Real Estate, Net | 24,666,435 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Huxley, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redwood City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 137 |  |  |
Initial Cost to Company, Land | $ 18,775,028 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 89,336,651 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 105,265 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,775,028 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 89,441,916 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 108,216,944 |  |  |
Accumulated Depreciation | (10,326,938) |  |  |
Investment in Real Estate, Net | 97,890,006 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Indie Deep Ellum [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Dallas, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 231 |  |  |
Initial Cost to Company, Land | $ 12,253,503 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 63,844,734 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 35,414 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,253,503 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 63,880,148 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 76,133,651 |  |  |
Accumulated Depreciation | (2,577,427) |  |  |
Investment in Real Estate, Net | 73,556,224 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Ivory Wood [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bothell, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 144 |  |  |
Initial Cost to Company, Land | $ 2,732,800 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 13,888,282 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,742,943 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 2,732,800 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 16,631,225 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 19,364,025 |  |  |
Accumulated Depreciation | (9,766,422) |  |  |
Investment in Real Estate, Net | 9,597,603 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Jia (fka Chinatown Gateway) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 280 |  |  |
Initial Cost to Company, Land | $ 14,791,831 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 78,286,423 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,142,453 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,791,831 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 79,428,876 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 94,220,707 |  |  |
Accumulated Depreciation | (27,653,136) |  |  |
Investment in Real Estate, Net | 66,567,571 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Junction 47 (fka West Seattle) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 206 |  |  |
Initial Cost to Company, Land | $ 11,726,305 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 56,584,312 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 376,513 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,726,305 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 56,960,825 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 68,687,130 |  |  |
Accumulated Depreciation | (14,552,334) |  |  |
Investment in Real Estate, Net | 54,134,796 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Juniper Sandy Springs [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Sandy Springs, GA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 230 |  |  |
Initial Cost to Company, Land | $ 8,668,700 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 64,965,193 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 17,829 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,668,700 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 64,983,022 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 73,651,722 |  |  |
Accumulated Depreciation | (622,903) |  |  |
Investment in Real Estate, Net | 73,028,819 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Kelvin, The (fka Modera) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Irvine, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 194 |  |  |
Initial Cost to Company, Land | $ 15,521,552 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 64,853,448 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 908,796 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,521,552 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 65,762,244 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 81,283,796 |  |  |
Accumulated Depreciation | (17,678,084) |  |  |
Investment in Real Estate, Net | 63,605,712 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Kilby [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Frisco, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 258 |  |  |
Initial Cost to Company, Land | $ 6,431,940 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 64,175,461 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 19,960 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,431,940 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 64,195,421 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 70,627,361 |  |  |
Accumulated Depreciation | (3,264,959) |  |  |
Investment in Real Estate, Net | 67,362,402 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Laguna Clara [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Santa Clara, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 264 |  |  |
Initial Cost to Company, Land | $ 13,642,420 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,684,902 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,733,754 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,642,420 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 38,418,656 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 52,061,076 |  |  |
Accumulated Depreciation | (22,548,251) |  |  |
Investment in Real Estate, Net | 29,512,825 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Laguna Clara II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Santa Clara, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,399,463 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 4,399,463 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 4,399,463 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 4,399,463 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Landings at Port Imperial [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | W. New York, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 276 |  |  |
Initial Cost to Company, Land | $ 27,246,045 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 37,741,050 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 16,597,064 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 27,246,045 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 54,338,114 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 81,584,159 |  |  |
Accumulated Depreciation | (37,633,786) |  |  |
Investment in Real Estate, Net | 43,950,373 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Lane [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 217 |  |  |
Initial Cost to Company, Land | $ 13,142,946 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 71,939,706 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 125,613 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,142,946 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 72,065,319 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 85,208,265 |  |  |
Accumulated Depreciation | (7,428,489) |  |  |
Investment in Real Estate, Net | 77,779,776 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Lex, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Jose, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 387 |  |  |
Initial Cost to Company, Land | $ 21,817,512 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 158,778,598 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 664,071 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 21,817,512 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 159,442,669 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 181,260,181 |  |  |
Accumulated Depreciation | (21,065,903) |  |  |
Investment in Real Estate, Net | 160,194,278 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Liberty Park [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Braintree, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 202 |  |  |
Initial Cost to Company, Land | $ 5,977,504 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,749,111 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,235,368 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,977,504 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 34,984,479 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 40,961,983 |  |  |
Accumulated Depreciation | (22,906,485) |  |  |
Investment in Real Estate, Net | 18,055,498 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Liberty Tower [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 235 |  |  |
Initial Cost to Company, Land | $ 16,382,822 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 83,817,078 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,030,560 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,382,822 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 89,847,638 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 106,230,460 |  |  |
Accumulated Depreciation | (38,101,851) |  |  |
Investment in Real Estate, Net | 68,128,609 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Lincoln Heights [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Quincy, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 336 |  |  |
Initial Cost to Company, Land | $ 5,928,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,595,262 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 16,212,156 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,928,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 49,807,418 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 55,735,818 |  |  |
Accumulated Depreciation | (41,040,115) |  |  |
Investment in Real Estate, Net | 14,695,703 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Lofts at Kendall Square (fka Kendall Square) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cambridge, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 186 |  |  |
Initial Cost to Company, Land | $ 18,696,674 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 78,445,657 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,812,849 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,696,674 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 86,258,506 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 104,955,180 |  |  |
Accumulated Depreciation | (31,085,417) |  |  |
Investment in Real Estate, Net | 73,869,763 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Lofts at Kendall Square ll (fka 249 Third Street) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cambridge, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 84 |  |  |
Initial Cost to Company, Land | $ 4,603,326 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,012,266 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 33,164 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,603,326 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 44,045,430 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 48,648,756 |  |  |
Accumulated Depreciation | (3,879,191) |  |  |
Investment in Real Estate, Net | 44,769,565 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Longacre House [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 293 |  |  |
Initial Cost to Company, Land | $ 73,170,045 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 53,962,510 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,230,046 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 73,170,045 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 60,192,556 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 133,362,601 |  |  |
Accumulated Depreciation | (30,329,437) |  |  |
Investment in Real Estate, Net | 103,033,164 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Longfellow Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 710 |  |  |
Initial Cost to Company, Land | $ 38,264,917 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 132,175,915 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 94,971,924 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 38,264,917 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 227,147,839 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 265,412,756 |  |  |
Accumulated Depreciation | (173,153,336) |  |  |
Investment in Real Estate, Net | 92,259,420 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Luna Upper Westside [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Atlanta, GA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 345 |  |  |
Initial Cost to Company, Land | $ 14,847,420 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 108,292,639 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 21,884 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,847,420 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 108,314,523 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 123,161,943 |  |  |
Accumulated Depreciation | (3,339,114) |  |  |
Investment in Real Estate, Net | 119,822,829 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Madox [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Jersey City, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 131 |  |  |
Initial Cost to Company, Land | $ 9,679,635 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 64,594,205 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,254,672 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,679,635 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 65,848,877 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 75,528,512 |  |  |
Accumulated Depreciation | (10,085,214) |  |  |
Investment in Real Estate, Net | 65,443,298 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mantena [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 98 |  |  |
Initial Cost to Company, Land | $ 22,346,513 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,501,158 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,761,788 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 22,346,513 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 63,262,946 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 85,609,459 |  |  |
Accumulated Depreciation | (22,271,078) |  |  |
Investment in Real Estate, Net | 63,338,381 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Marina 41 (fka Marina Del Rey) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Marina Del Rey, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 623 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 168,842,442 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,015,523 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 178,857,965 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 178,857,965 |  |  |
Accumulated Depreciation | (65,825,369) |  |  |
Investment in Real Estate, Net | 113,032,596 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mariposa at Playa Del Rey (fka Playa Del Rey) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Playa Del Rey, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 354 |  |  |
Initial Cost to Company, Land | $ 60,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 89,311,482 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,365,735 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 60,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 96,677,217 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 157,577,217 |  |  |
Accumulated Depreciation | (35,254,658) |  |  |
Investment in Real Estate, Net | 122,322,559 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mark On 8th [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 174 |  |  |
Initial Cost to Company, Land | $ 23,004,387 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 51,116,647 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 342,085 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 23,004,387 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 51,458,732 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 74,463,119 |  |  |
Accumulated Depreciation | (9,185,494) |  |  |
Investment in Real Estate, Net | 65,277,625 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Market Street Village [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 229 |  |  |
Initial Cost to Company, Land | $ 13,740,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,757,301 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,797,175 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,740,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 43,554,476 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 57,294,476 |  |  |
Accumulated Depreciation | (24,031,830) |  |  |
Investment in Real Estate, Net | 33,262,646 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Marlowe (fka Oakwood Crystal City) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 162 |  |  |
Initial Cost to Company, Land | $ 15,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 35,474,336 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,757,690 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 40,232,026 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 55,632,026 |  |  |
Accumulated Depreciation | (14,954,232) |  |  |
Investment in Real Estate, Net | 40,677,794 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Milano Lofts [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 99 |  |  |
Initial Cost to Company, Land | $ 8,125,216 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,378,784 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,530,389 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,125,216 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,909,173 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 40,034,389 |  |  |
Accumulated Depreciation | (11,851,749) |  |  |
Investment in Real Estate, Net | 28,182,640 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mill Creek [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Milpitas, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 516 |  |  |
Initial Cost to Company, Land | $ 12,858,693 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 57,168,503 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 18,798,964 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,858,693 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 75,967,467 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 88,826,160 |  |  |
Accumulated Depreciation | (46,782,863) |  |  |
Investment in Real Estate, Net | 42,043,297 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Milo [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Denver, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 319 |  |  |
Initial Cost to Company, Land | $ 15,957,975 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 153,099,656 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,957,975 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 153,099,656 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 169,057,631 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 169,057,631 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mosaic at Metro [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Hyattsville, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 260 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 59,580,898 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,837,346 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 61,418,244 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 61,418,244 |  |  |
Accumulated Depreciation | (27,876,865) |  |  |
Investment in Real Estate, Net | 33,541,379 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mountain View Redevelopment [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Mountain View, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,166,909 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 2,166,909 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 2,166,909 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 2,166,909 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Mozaic at Union Station [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 272 |  |  |
Initial Cost to Company, Land | $ 8,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 52,529,446 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,930,062 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 55,459,508 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 63,959,508 |  |  |
Accumulated Depreciation | (29,803,888) |  |  |
Investment in Real Estate, Net | 34,155,620 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Murray Hill Tower (fka Murray Hill) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 270 |  |  |
Initial Cost to Company, Land | $ 75,800,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 102,705,401 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,129,682 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 75,800,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 115,835,083 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 191,635,083 |  |  |
Accumulated Depreciation | (43,363,080) |  |  |
Investment in Real Estate, Net | 148,272,003 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Next on Sixth [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 398 |  |  |
Initial Cost to Company, Land | $ 52,509,906 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 136,635,650 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 605,836 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 52,509,906 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 137,241,486 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 189,751,392 |  |  |
Accumulated Depreciation | (18,715,038) |  |  |
Investment in Real Estate, Net | 171,036,354 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
North Pier at Harborside [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Jersey City, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 297 |  |  |
Initial Cost to Company, Land | $ 4,000,159 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 94,290,590 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,474,470 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,000,159 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 104,765,060 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 108,765,219 |  |  |
Accumulated Depreciation | (61,029,617) |  |  |
Investment in Real Estate, Net | 47,735,602 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Northglen [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Valencia, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 234 |  |  |
Initial Cost to Company, Land | $ 9,360,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,778,553 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,516,774 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,360,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,295,327 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 37,655,327 |  |  |
Accumulated Depreciation | (19,023,647) |  |  |
Investment in Real Estate, Net | 18,631,680 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Northpark [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Burlingame, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 510 |  |  |
Initial Cost to Company, Land | $ 38,607,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 77,472,217 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 16,819,921 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 38,607,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 94,292,138 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 132,899,138 |  |  |
Accumulated Depreciation | (47,487,541) |  |  |
Investment in Real Estate, Net | 85,411,597 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Oak Park Combined [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Agoura Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 444 |  |  |
Initial Cost to Company, Land | $ 3,390,700 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 30,517,274 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 12,111,379 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,390,700 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 42,628,653 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 46,019,353 |  |  |
Accumulated Depreciation | (36,862,704) |  |  |
Investment in Real Estate, Net | 9,156,649 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Oaks [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Santa Clarita, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 520 |  |  |
Initial Cost to Company, Land | $ 23,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,020,438 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,122,280 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 23,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 71,142,718 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 94,542,718 |  |  |
Accumulated Depreciation | (44,090,629) |  |  |
Investment in Real Estate, Net | 50,452,089 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Ocean Crest [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Solana Beach, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 146 |  |  |
Initial Cost to Company, Land | $ 5,111,200 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,910,438 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,268,993 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,111,200 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 17,179,431 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 22,290,631 |  |  |
Accumulated Depreciation | (13,263,918) |  |  |
Investment in Real Estate, Net | 9,026,713 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Odin (fka Tallman) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 301 |  |  |
Initial Cost to Company, Land | $ 16,807,519 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 64,519,515 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 170,392 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,807,519 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 64,689,907 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 81,497,426 |  |  |
Accumulated Depreciation | (16,311,212) |  |  |
Investment in Real Estate, Net | 65,186,214 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Olivian at the Realm [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Lewisville, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 421 |  |  |
Initial Cost to Company, Land | $ 14,854,564 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 109,261,221 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,854,564 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 109,261,221 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 124,115,785 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 124,115,785 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
One Henry Adams [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 241 |  |  |
Initial Cost to Company, Land | $ 30,224,393 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 139,604,146 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 242,340 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 30,224,393 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 139,846,486 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 170,070,879 |  |  |
Accumulated Depreciation | (28,006,849) |  |  |
Investment in Real Estate, Net | 142,064,030 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
One India Street (fka Oakwood Boston) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 94 |  |  |
Initial Cost to Company, Land | $ 22,200,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,672,979 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,088,089 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 22,200,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 35,761,068 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 57,961,068 |  |  |
Accumulated Depreciation | (13,161,555) |  |  |
Investment in Real Estate, Net | 44,799,513 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Osprey [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Atlanta, GA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 320 |  |  |
Initial Cost to Company, Land | $ 18,121,932 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 116,942,248 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,397 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,121,932 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 116,951,645 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 135,073,577 |  |  |
Accumulated Depreciation | (4,243,648) |  |  |
Investment in Real Estate, Net | 130,829,929 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Pacific Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 430 |  |  |
Initial Cost to Company, Land | $ 32,250,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 110,750,000 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,377,323 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,250,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 113,127,323 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 145,377,323 |  |  |
Accumulated Depreciation | (38,719,361) |  |  |
Investment in Real Estate, Net | 106,657,962 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Packard Building [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 61 |  |  |
Initial Cost to Company, Land | $ 5,911,041 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,954,959 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,289,877 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,911,041 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 21,244,836 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 27,155,877 |  |  |
Accumulated Depreciation | (5,677,314) |  |  |
Investment in Real Estate, Net | 21,478,563 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Parc 77 [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 137 |  |  |
Initial Cost to Company, Land | $ 40,504,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,025,679 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,360,941 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 40,504,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 25,386,620 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 65,890,620 |  |  |
Accumulated Depreciation | (15,823,387) |  |  |
Investment in Real Estate, Net | 50,067,233 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Parc Cameron [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 166 |  |  |
Initial Cost to Company, Land | $ 37,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,855,597 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,969,567 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 37,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 17,825,164 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 55,425,164 |  |  |
Accumulated Depreciation | (12,804,109) |  |  |
Investment in Real Estate, Net | 42,621,055 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Parc Coliseum [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 177 |  |  |
Initial Cost to Company, Land | $ 52,654,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,045,751 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,151,472 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 52,654,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 33,197,223 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 85,851,223 |  |  |
Accumulated Depreciation | (21,315,552) |  |  |
Investment in Real Estate, Net | 64,535,671 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Parc East Towers [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 324 |  |  |
Initial Cost to Company, Land | $ 102,163,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 108,989,402 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,975,990 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 102,163,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 122,965,392 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 225,128,392 |  |  |
Accumulated Depreciation | (65,431,630) |  |  |
Investment in Real Estate, Net | 159,696,762 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Parc on Powell (fka Parkside at Emeryville) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Emeryville, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 173 |  |  |
Initial Cost to Company, Land | $ 16,667,059 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 65,468,571 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 894,344 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,667,059 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 66,362,915 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 83,029,974 |  |  |
Accumulated Depreciation | (17,329,432) |  |  |
Investment in Real Estate, Net | 65,700,542 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Park Connecticut [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 142 |  |  |
Initial Cost to Company, Land | $ 13,700,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 59,087,519 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,901,025 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,700,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 61,988,544 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 75,688,544 |  |  |
Accumulated Depreciation | (20,895,182) |  |  |
Investment in Real Estate, Net | 54,793,362 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Park West (CA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 444 |  |  |
Initial Cost to Company, Land | $ 3,033,500 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,302,383 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,432,822 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,033,500 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 40,735,205 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 43,768,705 |  |  |
Accumulated Depreciation | (34,282,511) |  |  |
Investment in Real Estate, Net | 9,486,194 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Parkside [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Union City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 208 |  |  |
Initial Cost to Company, Land | $ 6,246,700 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,827,453 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,549,823 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,246,700 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 20,377,276 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 26,623,976 |  |  |
Accumulated Depreciation | (15,097,028) |  |  |
Investment in Real Estate, Net | 11,526,948 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Pearl, The (WA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 80 |  |  |
Initial Cost to Company, Land | $ 6,972,585 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,527,415 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,256,823 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,972,585 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 27,784,238 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 34,756,823 |  |  |
Accumulated Depreciation | (7,499,036) |  |  |
Investment in Real Estate, Net | 27,257,787 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Pearl MDR (fka Oakwood Marina Del Rey) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Marina Del Rey, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 597 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 120,795,359 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,187,274 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 127,982,633 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 127,982,633 |  |  |
Accumulated Depreciation | (48,509,088) |  |  |
Investment in Real Estate, Net | 79,473,545 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Pegasus [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 322 |  |  |
Initial Cost to Company, Land | $ 18,094,052 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 81,905,948 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,565,146 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,094,052 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 90,471,094 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 108,565,146 |  |  |
Accumulated Depreciation | (38,970,462) |  |  |
Investment in Real Estate, Net | 69,594,684 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Portofino [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chino Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 176 |  |  |
Initial Cost to Company, Land | $ 3,572,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,660,994 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,142,052 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,572,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 18,803,046 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 22,375,446 |  |  |
Accumulated Depreciation | (15,501,829) |  |  |
Investment in Real Estate, Net | 6,873,617 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Portofino (Val) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Valencia, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 216 |  |  |
Initial Cost to Company, Land | $ 8,640,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,487,126 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,691,443 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,640,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,178,569 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 36,818,569 |  |  |
Accumulated Depreciation | (19,742,885) |  |  |
Investment in Real Estate, Net | 17,075,684 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Portside Towers [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Jersey City, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 527 |  |  |
Initial Cost to Company, Land | $ 22,487,006 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 96,842,913 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 28,946,965 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 22,487,006 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 125,789,878 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 148,276,884 |  |  |
Accumulated Depreciation | (98,609,366) |  |  |
Investment in Real Estate, Net | 49,667,518 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Potrero 1010 [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 453 |  |  |
Initial Cost to Company, Land | $ 40,830,011 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 181,924,463 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,453,552 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 40,830,011 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 183,378,015 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 224,208,026 |  |  |
Accumulated Depreciation | (41,306,612) |  |  |
Investment in Real Estate, Net | 182,901,414 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Prado (fka Glendale) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Glendale, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 264 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 67,977,313 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,891,346 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 74,868,659 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 74,868,659 |  |  |
Accumulated Depreciation | (26,817,073) |  |  |
Investment in Real Estate, Net | 48,051,586 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Prime, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 281 |  |  |
Initial Cost to Company, Land | $ 34,625,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 77,879,740 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,109,136 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 34,625,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 83,988,876 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 118,613,876 |  |  |
Accumulated Depreciation | (38,545,149) |  |  |
Investment in Real Estate, Net | 80,068,727 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Prism at Park Avenue South (fka 400 Park Aveue South (EQR)) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 269 |  |  |
Initial Cost to Company, Land | $ 76,292,169 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 171,771,886 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 247,225 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 76,292,169 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 172,019,111 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 248,311,280 |  |  |
Accumulated Depreciation | (45,640,216) |  |  |
Investment in Real Estate, Net | 202,671,064 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Promenade at Town Center I & II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Valencia, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 564 |  |  |
Initial Cost to Company, Land | $ 28,200,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 69,795,915 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 15,138,641 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 28,200,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 84,934,556 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 113,134,556 |  |  |
Accumulated Depreciation | (50,812,260) |  |  |
Investment in Real Estate, Net | 62,322,296 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Providence [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bothell, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 200 |  |  |
Initial Cost to Company, Land | $ 3,573,621 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,055,505 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,727,670 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,573,621 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 24,783,175 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 28,356,796 |  |  |
Accumulated Depreciation | (14,191,409) |  |  |
Investment in Real Estate, Net | 14,165,387 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Quarry Hills [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Quincy, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 316 |  |  |
Initial Cost to Company, Land | $ 26,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 84,411,162 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,214,690 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 26,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 89,625,852 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 116,525,852 |  |  |
Accumulated Depreciation | (32,044,955) |  |  |
Investment in Real Estate, Net | 84,480,897 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Radiant Fairfax Ridge [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Fairfax, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 213 |  |  |
Initial Cost to Company, Land | $ 7,352,547 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 63,018,744 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 130,731 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,352,547 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 63,149,475 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 70,502,022 |  |  |
Accumulated Depreciation | (3,775,097) |  |  |
Investment in Real Estate, Net | 66,726,925 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Radius Uptown [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Denver, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 372 |  |  |
Initial Cost to Company, Land | $ 13,644,960 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 121,899,084 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,896,784 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,644,960 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 123,795,868 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 137,440,828 |  |  |
Accumulated Depreciation | (19,855,000) |  |  |
Investment in Real Estate, Net | 117,585,828 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Red 160 (fka Redmond Way) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redmond, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 250 |  |  |
Initial Cost to Company, Land | $ 15,546,376 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 65,320,010 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,795,106 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,546,376 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 67,115,116 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 82,661,492 |  |  |
Accumulated Depreciation | (25,272,790) |  |  |
Investment in Real Estate, Net | 57,388,702 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Redmond Court [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bellevue, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 206 |  |  |
Initial Cost to Company, Land | $ 10,300,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,488,745 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,730,013 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,300,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 37,218,758 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 47,518,758 |  |  |
Accumulated Depreciation | (14,009,343) |  |  |
Investment in Real Estate, Net | 33,509,415 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Regency Palms [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Huntington Beach, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 310 |  |  |
Initial Cost to Company, Land | $ 1,857,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,713,254 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,707,710 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,857,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 25,420,964 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 27,278,364 |  |  |
Accumulated Depreciation | (20,984,954) |  |  |
Investment in Real Estate, Net | 6,293,410 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Burlington, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Burlington, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 270 |  |  |
Initial Cost to Company, Land | $ 20,250,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 114,475,523 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 101,854 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 20,250,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 114,577,377 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 134,827,377 |  |  |
Accumulated Depreciation | (5,817,645) |  |  |
Investment in Real Estate, Net | 129,009,732 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Clarendon Centre, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 252 |  |  |
Initial Cost to Company, Land | $ 10,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 52,812,935 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,327,794 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 58,140,729 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 68,640,729 |  |  |
Accumulated Depreciation | (36,876,197) |  |  |
Investment in Real Estate, Net | 31,764,532 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Eisenhower, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alexandria, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 226 |  |  |
Initial Cost to Company, Land | $ 6,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,585,059 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,515,216 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 40,100,275 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 46,600,275 |  |  |
Accumulated Depreciation | (25,376,674) |  |  |
Investment in Real Estate, Net | 21,223,601 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Empire Lakes [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Rancho Cucamonga, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 467 |  |  |
Initial Cost to Company, Land | $ 16,345,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 73,080,670 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,210,962 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,345,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 81,291,632 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 97,636,632 |  |  |
Accumulated Depreciation | (44,759,994) |  |  |
Investment in Real Estate, Net | 52,876,638 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Fairfax Corner [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Fairfax, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 652 |  |  |
Initial Cost to Company, Land | $ 15,804,057 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 63,129,050 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,867,418 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,804,057 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 76,996,468 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 92,800,525 |  |  |
Accumulated Depreciation | (50,742,107) |  |  |
Investment in Real Estate, Net | 42,058,418 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Mountain View (fka Mountain View) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Mountain View, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 180 |  |  |
Initial Cost to Company, Land | $ 27,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,029,605 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,523,900 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 27,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 41,553,505 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 68,553,505 |  |  |
Accumulated Depreciation | (16,598,937) |  |  |
Investment in Real Estate, Net | 51,954,568 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Potomac Yard [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alexandria, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 588 |  |  |
Initial Cost to Company, Land | $ 11,918,917 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 68,862,641 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 19,250,823 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,918,917 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 88,113,464 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 100,032,381 |  |  |
Accumulated Depreciation | (53,684,381) |  |  |
Investment in Real Estate, Net | 46,348,000 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Reserve at Town Center I-III (WA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Mill Creek, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 584 |  |  |
Initial Cost to Company, Land | $ 16,768,705 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 77,623,664 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 11,315,691 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,768,705 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 88,939,355 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 105,708,060 |  |  |
Accumulated Depreciation | (43,366,666) |  |  |
Investment in Real Estate, Net | 62,341,394 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Rianna I & II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 156 |  |  |
Initial Cost to Company, Land | $ 4,430,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,298,096 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,975,735 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,430,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,273,831 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 35,703,831 |  |  |
Accumulated Depreciation | (14,608,457) |  |  |
Investment in Real Estate, Net | 21,095,374 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Ridgewood Village I&II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 408 |  |  |
Initial Cost to Company, Land | $ 11,809,500 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,004,048 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,140,439 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,809,500 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 41,144,487 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 52,953,987 |  |  |
Accumulated Depreciation | (30,998,875) |  |  |
Investment in Real Estate, Net | 21,955,112 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Riva Terra I (fka Redwood Shores) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redwood City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 304 |  |  |
Initial Cost to Company, Land | $ 34,963,355 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 84,587,658 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,421,032 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 34,963,355 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 93,008,690 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 127,972,045 |  |  |
Accumulated Depreciation | (35,095,846) |  |  |
Investment in Real Estate, Net | 92,876,199 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Riva Terra II (fka Harborside) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redwood City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 149 |  |  |
Initial Cost to Company, Land | $ 17,136,645 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,536,531 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,141,820 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 17,136,645 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 44,678,351 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 61,814,996 |  |  |
Accumulated Depreciation | (15,663,545) |  |  |
Investment in Real Estate, Net | 46,151,451 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Riverpark [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redmond, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 321 |  |  |
Initial Cost to Company, Land | $ 14,355,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 80,894,049 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,143,443 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,355,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 86,037,492 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 100,392,492 |  |  |
Accumulated Depreciation | (33,609,905) |  |  |
Investment in Real Estate, Net | 66,782,587 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Rivington, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Hoboken, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 240 |  |  |
Initial Cost to Company, Land | $ 34,340,640 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 112,112,152 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,260,470 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 34,340,640 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 116,372,622 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 150,713,262 |  |  |
Accumulated Depreciation | (20,226,305) |  |  |
Investment in Real Estate, Net | 130,486,957 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Rivington II, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Hoboken, NJ |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 736,622 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 736,622 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 736,622 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 736,622 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Rosecliff II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Quincy, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 130 |  |  |
Initial Cost to Company, Land | $ 4,922,840 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 30,202,160 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,042,877 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,922,840 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 32,245,037 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 37,167,877 |  |  |
Accumulated Depreciation | (13,320,307) |  |  |
Investment in Real Estate, Net | 23,847,570 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Sakura Crossing [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 230 |  |  |
Initial Cost to Company, Land | $ 14,641,990 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 42,858,010 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,646,714 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,641,990 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 44,504,724 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 59,146,714 |  |  |
Accumulated Depreciation | (19,007,871) |  |  |
Investment in Real Estate, Net | 40,138,843 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Saxton [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 325 |  |  |
Initial Cost to Company, Land | $ 38,805,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 128,652,023 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 474,368 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 38,805,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 129,126,391 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 167,931,791 |  |  |
Accumulated Depreciation | (14,473,592) |  |  |
Investment in Real Estate, Net | 153,458,199 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Seventh & James [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 96 |  |  |
Initial Cost to Company, Land | $ 663,800 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,974,803 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,681,230 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 663,800 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 10,656,033 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 11,319,833 |  |  |
Accumulated Depreciation | (8,984,088) |  |  |
Investment in Real Estate, Net | 2,335,745 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Sheffield Court [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 597 |  |  |
Initial Cost to Company, Land | $ 3,342,381 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,337,332 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 21,942,021 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,342,381 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 53,279,353 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 56,621,734 |  |  |
Accumulated Depreciation | (43,912,782) |  |  |
Investment in Real Estate, Net | 12,708,952 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Siena Terrace [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Lake Forest, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 356 |  |  |
Initial Cost to Company, Land | $ 8,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 24,083,024 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,984,059 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 33,067,083 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 41,967,083 |  |  |
Accumulated Depreciation | (25,390,768) |  |  |
Investment in Real Estate, Net | 16,576,315 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Skycrest [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Valencia, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 264 |  |  |
Initial Cost to Company, Land | $ 10,560,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,574,457 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,723,207 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,560,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 32,297,664 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 42,857,664 |  |  |
Accumulated Depreciation | (22,365,804) |  |  |
Investment in Real Estate, Net | 20,491,860 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Skyhouse South [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Atlanta, GA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 320 |  |  |
Initial Cost to Company, Land | $ 14,182,277 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 101,913,422 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 158,435 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,182,277 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 102,071,857 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 116,254,134 |  |  |
Accumulated Depreciation | (5,725,734) |  |  |
Investment in Real Estate, Net | 110,528,400 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Skylark [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Union City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 174 |  |  |
Initial Cost to Company, Land | $ 1,781,600 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,731,916 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,805,074 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,781,600 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 22,536,990 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 24,318,590 |  |  |
Accumulated Depreciation | (17,322,154) |  |  |
Investment in Real Estate, Net | 6,996,436 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Skyview [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Rancho Santa Margarita, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 260 |  |  |
Initial Cost to Company, Land | $ 3,380,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,952,863 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,350,413 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,380,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,303,276 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 31,683,276 |  |  |
Accumulated Depreciation | (21,352,684) |  |  |
Investment in Real Estate, Net | 10,330,592 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
SoMa II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 29,406,606 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,919,806 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 29,406,606 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 5,919,806 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 35,326,412 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 35,326,412 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Sonterra at Foothill Ranch [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Foothill Ranch, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 300 |  |  |
Initial Cost to Company, Land | $ 7,503,400 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 24,048,507 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,366,303 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,503,400 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 30,414,810 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 37,918,210 |  |  |
Accumulated Depreciation | (23,842,813) |  |  |
Investment in Real Estate, Net | 14,075,397 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
South City Station (fka South San Francisco) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 368 |  |  |
Initial Cost to Company, Land | $ 68,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 79,476,861 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,779,557 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 68,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 87,256,418 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 156,156,418 |  |  |
Accumulated Depreciation | (30,685,655) |  |  |
Investment in Real Estate, Net | 125,470,763 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Southwood [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Palo Alto, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 100 |  |  |
Initial Cost to Company, Land | $ 6,936,600 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,324,069 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,081,692 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,936,600 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 21,405,761 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 28,342,361 |  |  |
Accumulated Depreciation | (15,883,455) |  |  |
Investment in Real Estate, Net | 12,458,906 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Springline [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 136 |  |  |
Initial Cost to Company, Land | $ 9,163,667 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,910,981 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 549,328 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,163,667 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 48,460,309 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 57,623,976 |  |  |
Accumulated Depreciation | (9,997,909) |  |  |
Investment in Real Estate, Net | 47,626,067 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
STOA [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 237 |  |  |
Initial Cost to Company, Land | $ 25,326,048 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 79,976,031 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 496,107 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 25,326,048 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 80,472,138 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 105,798,186 |  |  |
Accumulated Depreciation | (11,336,753) |  |  |
Investment in Real Estate, Net | 94,461,433 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Summerset Village [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chatsworth, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 280 |  |  |
Initial Cost to Company, Land | $ 2,890,450 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,670,889 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,118,095 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 2,890,450 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 32,788,984 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 35,679,434 |  |  |
Accumulated Depreciation | (27,722,137) |  |  |
Investment in Real Estate, Net | 7,957,297 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Ten23 (fka 500 West 23rd Street) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 111 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 58,881,873 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,671,777 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 60,553,650 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 60,553,650 |  |  |
Accumulated Depreciation | (20,445,713) |  |  |
Investment in Real Estate, Net | 40,107,937 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Terraces, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 117 |  |  |
Initial Cost to Company, Land | $ 14,087,610 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,314,151 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,658,613 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,087,610 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 18,972,764 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 33,060,374 |  |  |
Accumulated Depreciation | (8,712,774) |  |  |
Investment in Real Estate, Net | 24,347,600 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Square One [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 112 |  |  |
Initial Cost to Company, Land | $ 7,222,544 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,277,456 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 163,775 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,222,544 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 26,441,231 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 33,663,775 |  |  |
Accumulated Depreciation | (8,120,956) |  |  |
Investment in Real Estate, Net | 25,542,819 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Theo [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Denver, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 275 |  |  |
Initial Cost to Company, Land | $ 15,322,049 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 121,885,750 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,322,049 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 121,885,750 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 137,207,799 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 137,207,799 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Third Square [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cambridge, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 471 |  |  |
Initial Cost to Company, Land | $ 26,767,171 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 218,822,728 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 9,976,614 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 26,767,171 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 228,799,342 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 255,566,513 |  |  |
Accumulated Depreciation | (103,039,548) |  |  |
Investment in Real Estate, Net | 152,526,965 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Three20 [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 134 |  |  |
Initial Cost to Company, Land | $ 7,030,766 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,005,762 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,019,864 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,030,766 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 30,025,626 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 37,056,392 |  |  |
Accumulated Depreciation | (9,965,271) |  |  |
Investment in Real Estate, Net | 27,091,121 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Toscana [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Irvine, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 563 |  |  |
Initial Cost to Company, Land | $ 39,410,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 50,806,072 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 26,804,440 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 39,410,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 77,610,512 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 117,020,512 |  |  |
Accumulated Depreciation | (51,851,771) |  |  |
Investment in Real Estate, Net | 65,168,741 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Town Square at Mark Center I&II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alexandria, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 678 |  |  |
Initial Cost to Company, Land | $ 39,928,464 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 141,208,321 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 15,585,249 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 39,928,464 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 156,793,570 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 196,722,034 |  |  |
Accumulated Depreciation | (82,156,391) |  |  |
Investment in Real Estate, Net | 114,565,643 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Troy Boston [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 378 |  |  |
Initial Cost to Company, Land | $ 34,641,051 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 181,607,331 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,570,737 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 34,641,051 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 184,178,068 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 218,819,119 |  |  |
Accumulated Depreciation | (31,608,549) |  |  |
Investment in Real Estate, Net | 187,210,570 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Urbana (fka Market Street Landing) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 289 |  |  |
Initial Cost to Company, Land | $ 12,542,418 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 75,800,090 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,025,940 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,542,418 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 78,826,030 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 91,368,448 |  |  |
Accumulated Depreciation | (25,974,224) |  |  |
Investment in Real Estate, Net | 65,394,224 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Uwajimaya Village [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 176 |  |  |
Initial Cost to Company, Land | $ 8,800,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,188,288 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,003,692 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,800,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,191,980 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 36,991,980 |  |  |
Accumulated Depreciation | (15,062,661) |  |  |
Investment in Real Estate, Net | 21,929,319 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Veloce [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redmond, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 322 |  |  |
Initial Cost to Company, Land | $ 15,322,724 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 76,176,594 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,403,261 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,322,724 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 78,579,855 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 93,902,579 |  |  |
Accumulated Depreciation | (28,242,511) |  |  |
Investment in Real Estate, Net | 65,660,068 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Venue at the Promenade [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Castle Rock, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 312 |  |  |
Initial Cost to Company, Land | $ 8,355,048 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 83,752,689 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 343,056 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,355,048 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 84,095,745 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 92,450,793 |  |  |
Accumulated Depreciation | (11,195,864) |  |  |
Investment in Real Estate, Net | 81,254,929 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Verde Condominium Homes (fka Mission Verde, LLC) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Jose, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 108 |  |  |
Initial Cost to Company, Land | $ 5,190,700 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,679,109 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,846,760 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,190,700 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 14,525,869 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 19,716,569 |  |  |
Accumulated Depreciation | (11,767,298) |  |  |
Investment in Real Estate, Net | 7,949,271 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Veridian (fka Silver Spring) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Silver Spring, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 457 |  |  |
Initial Cost to Company, Land | $ 18,539,817 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 130,407,365 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,769,828 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,539,817 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 135,177,193 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 153,717,010 |  |  |
Accumulated Depreciation | (58,024,618) |  |  |
Investment in Real Estate, Net | 95,692,392 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Versailles [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Woodland Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 253 |  |  |
Initial Cost to Company, Land | $ 12,650,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,656,292 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,731,475 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,650,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 42,387,767 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 55,037,767 |  |  |
Accumulated Depreciation | (27,656,992) |  |  |
Investment in Real Estate, Net | 27,380,775 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Versailles (K-Town) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 225 |  |  |
Initial Cost to Company, Land | $ 10,590,975 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,409,025 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,985,889 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,590,975 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 46,394,914 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 56,985,889 |  |  |
Accumulated Depreciation | (21,643,771) |  |  |
Investment in Real Estate, Net | 35,342,118 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Victor on Venice [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 115 |  |  |
Initial Cost to Company, Land | $ 10,350,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 35,433,437 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,802,294 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,350,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 38,235,731 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 48,585,731 |  |  |
Accumulated Depreciation | (19,744,025) |  |  |
Investment in Real Estate, Net | 28,841,706 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Villa Solana [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Laguna Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 272 |  |  |
Initial Cost to Company, Land | $ 1,665,100 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,985,677 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,409,554 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,665,100 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,395,231 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 30,060,331 |  |  |
Accumulated Depreciation | (24,244,498) |  |  |
Investment in Real Estate, Net | 5,815,833 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Village at Del Mar Heights, The (fka Del Mar Heights) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 168 |  |  |
Initial Cost to Company, Land | $ 15,100,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,859,396 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,812,705 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,100,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 44,672,101 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 59,772,101 |  |  |
Accumulated Depreciation | (16,691,542) |  |  |
Investment in Real Estate, Net | 43,080,559 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Virginia Square [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 231 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 85,940,003 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,245,382 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 92,185,385 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 92,185,385 |  |  |
Accumulated Depreciation | (33,233,676) |  |  |
Investment in Real Estate, Net | 58,951,709 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Vista 99 (fka Tasman) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Jose, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 554 |  |  |
Initial Cost to Company, Land | $ 27,709,329 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 177,556,948 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,080,962 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 27,709,329 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 178,637,910 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 206,347,239 |  |  |
Accumulated Depreciation | (41,109,307) |  |  |
Investment in Real Estate, Net | 165,237,932 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Vista Del Lago [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Mission Viejo, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 608 |  |  |
Initial Cost to Company, Land | $ 4,525,800 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,736,293 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 21,903,738 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,525,800 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 62,640,031 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 67,165,831 |  |  |
Accumulated Depreciation | (55,190,613) |  |  |
Investment in Real Estate, Net | 11,975,218 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Walden Park [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Cambridge, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 232 |  |  |
Initial Cost to Company, Land | $ 12,448,888 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 52,044,448 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,341,555 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,448,888 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 57,386,003 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 69,834,891 |  |  |
Accumulated Depreciation | (25,275,403) |  |  |
Investment in Real Estate, Net | 44,559,488 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Water Park Towers [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 362 |  |  |
Initial Cost to Company, Land | $ 34,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 108,485,859 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 12,902,949 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 34,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 121,388,808 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 155,788,808 |  |  |
Accumulated Depreciation | (44,465,434) |  |  |
Investment in Real Estate, Net | 111,323,374 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Watertown Square [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Watertown, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 134 |  |  |
Initial Cost to Company, Land | $ 16,800,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,074,056 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,350,073 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,800,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 36,424,129 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 53,224,129 |  |  |
Accumulated Depreciation | (12,910,211) |  |  |
Investment in Real Estate, Net | 40,313,918 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Weaver, The [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Austin, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 250 |  |  |
Initial Cost to Company, Land | $ 25,405,232 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 69,462,470 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 25,405,232 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 69,462,470 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 94,867,702 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 94,867,702 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
West 96th [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 207 |  |  |
Initial Cost to Company, Land | $ 84,800,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 67,055,501 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,730,725 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 84,800,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 74,786,226 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 159,586,226 |  |  |
Accumulated Depreciation | (28,904,295) |  |  |
Investment in Real Estate, Net | 130,681,931 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
West End Apartments (fka Emerson Place/CRP II) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 310 |  |  |
Initial Cost to Company, Land | $ 469,546 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 163,123,022 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,795,801 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 469,546 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 168,918,823 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 169,388,369 |  |  |
Accumulated Depreciation | (79,030,892) |  |  |
Investment in Real Estate, Net | 90,357,477 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westchester at Rockville [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Rockville, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 192 |  |  |
Initial Cost to Company, Land | $ 10,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,135,207 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,445,723 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 45,580,930 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 56,180,930 |  |  |
Accumulated Depreciation | (15,808,954) |  |  |
Investment in Real Estate, Net | 40,371,976 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westerly [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Dallas, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 331 |  |  |
Initial Cost to Company, Land | $ 11,958,829 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 79,131,722 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,958,829 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 79,131,722 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 91,090,551 |  |  |
Accumulated Depreciation | (1,663,331) |  |  |
Investment in Real Estate, Net | 89,427,220 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westmont [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 163 |  |  |
Initial Cost to Company, Land | $ 64,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,143,259 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,045,674 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 64,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 68,188,933 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 133,088,933 |  |  |
Accumulated Depreciation | (24,572,551) |  |  |
Investment in Real Estate, Net | 108,516,382 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 204 |  |  |
Initial Cost to Company, Land | $ 34,200,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 56,962,630 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,519,987 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 34,200,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 60,482,617 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 94,682,617 |  |  |
Accumulated Depreciation | (21,371,770) |  |  |
Investment in Real Estate, Net | 73,310,847 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside Barrington (fka Westside Villas III) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 36 |  |  |
Initial Cost to Company, Land | $ 3,060,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,538,871 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,215,009 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,060,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 6,753,880 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 9,813,880 |  |  |
Accumulated Depreciation | (4,739,695) |  |  |
Investment in Real Estate, Net | 5,074,185 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside Barry (fka Westside Villas VI) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 18 |  |  |
Initial Cost to Company, Land | $ 1,530,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,023,523 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 788,195 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,530,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 3,811,718 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 5,341,718 |  |  |
Accumulated Depreciation | (2,659,355) |  |  |
Investment in Real Estate, Net | 2,682,363 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside Beloit (fka Westside Villas I) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 21 |  |  |
Initial Cost to Company, Land | $ 1,785,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,233,254 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 828,098 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,785,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 4,061,352 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 5,846,352 |  |  |
Accumulated Depreciation | (2,875,530) |  |  |
Investment in Real Estate, Net | 2,970,822 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside Bundy (fka Westside Villas II) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 23 |  |  |
Initial Cost to Company, Land | $ 1,955,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,541,435 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 819,978 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 1,955,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 4,361,413 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 6,316,413 |  |  |
Accumulated Depreciation | (3,052,276) |  |  |
Investment in Real Estate, Net | 3,264,137 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside Butler (fka Westside Villas IV) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 36 |  |  |
Initial Cost to Company, Land | $ 3,060,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,539,390 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,250,519 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 3,060,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 6,789,909 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 9,849,909 |  |  |
Accumulated Depreciation | (4,771,162) |  |  |
Investment in Real Estate, Net | 5,078,747 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Westside Villas (fka Westside Villas V &VII) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 113 |  |  |
Initial Cost to Company, Land | $ 9,605,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,983,385 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,074,521 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,605,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 23,057,906 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 32,662,906 |  |  |
Accumulated Depreciation | (15,896,472) |  |  |
Investment in Real Estate, Net | 16,766,434 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Windridge (CA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Laguna Niguel, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 344 |  |  |
Initial Cost to Company, Land | $ 2,662,900 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,985,497 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,392,574 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 2,662,900 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 37,378,071 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 40,040,971 |  |  |
Accumulated Depreciation | (32,468,218) |  |  |
Investment in Real Estate, Net | 7,572,753 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Woodleaf [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Campbell, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 178 |  |  |
Initial Cost to Company, Land | $ 8,550,600 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,988,182 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,239,245 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,550,600 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 24,227,427 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 32,778,027 |  |  |
Accumulated Depreciation | (18,367,471) |  |  |
Investment in Real Estate, Net | 14,410,556 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Zephyr on the Park [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redmond, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 193 |  |  |
Initial Cost to Company, Land | $ 15,637,106 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 89,960,836 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 47,523 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 15,637,106 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 90,008,359 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 105,645,465 |  |  |
Accumulated Depreciation | (3,050,772) |  |  |
Investment in Real Estate, Net | 102,594,693 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Management Business [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chicago, IL |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 139,672,539 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 139,672,539 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 139,672,539 |  |  |
Accumulated Depreciation | (108,884,370) |  |  |
Investment in Real Estate, Net | 30,788,169 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Operating Partnership [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chicago, IL |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,447,587 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 1,447,587 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 1,447,587 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 1,447,587 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Other [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | N/A |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 109,837 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 109,837 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 109,837 |  |  |
Accumulated Depreciation | (85,278) |  |  |
Investment in Real Estate, Net | 24,559 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Wholly Owned Unencumbered [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 67,748 |  |  |
Initial Cost to Company, Land | $ 4,942,884,454 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 17,209,707,547 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,700,307,269 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,942,884,454 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 18,910,014,816 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 23,852,899,270 |  |  |
Accumulated Depreciation | (7,039,743,046) |  |  |
Investment in Real Estate, Net | 16,813,156,224 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
1111 Belle Pre (fka The Madison) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alexandria, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 360 |  |  |
Initial Cost to Company, Land | $ 18,937,702 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 94,758,679 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 817,533 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,937,702 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 95,576,212 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 114,513,914 |  |  |
Accumulated Depreciation | (31,780,060) |  |  |
Investment in Real Estate, Net | 82,733,854 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 86,298,662 |  |  |
2501 Porter [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 202 |  |  |
Initial Cost to Company, Land | $ 13,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 75,271,179 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,260,524 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 82,531,703 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 95,531,703 |  |  |
Accumulated Depreciation | (30,707,382) |  |  |
Investment in Real Estate, Net | $ 64,824,321 |  |  |
300 East 39th (fka East 39th) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 254 |  |  |
Initial Cost to Company, Land | $ 48,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 96,174,639 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,988,547 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 48,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 103,163,186 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 152,063,186 |  |  |
Accumulated Depreciation | (36,436,305) |  |  |
Investment in Real Estate, Net | 115,626,881 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 63,205,738 |  |  |
303 East 83rd (fka Camargue) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 261 |  |  |
Initial Cost to Company, Land | $ 79,400,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 79,122,624 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 12,346,139 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 79,400,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 91,468,763 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 170,868,763 |  |  |
Accumulated Depreciation | (34,205,778) |  |  |
Investment in Real Estate, Net | $ 136,662,985 |  |  |
425 Broadway [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Santa Monica, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 101 |  |  |
Initial Cost to Company, Land | $ 12,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,394,772 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,952,205 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 38,346,977 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 50,946,977 |  |  |
Accumulated Depreciation | (14,054,927) |  |  |
Investment in Real Estate, Net | $ 36,892,050 |  |  |
Alcyone [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 162 |  |  |
Initial Cost to Company, Land | $ 11,379,497 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 49,360,503 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,913,197 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 11,379,497 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 51,273,700 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 62,653,197 |  |  |
Accumulated Depreciation | (15,405,573) |  |  |
Investment in Real Estate, Net | 47,247,624 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 26,163,830 |  |  |
Artisan Square [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Northridge, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 140 |  |  |
Initial Cost to Company, Land | $ 7,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,537,359 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,774,707 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 23,312,066 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 30,312,066 |  |  |
Accumulated Depreciation | (14,819,685) |  |  |
Investment in Real Estate, Net | 15,492,381 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 35,626,749 |  |  |
Avanti [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Anaheim, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 162 |  |  |
Initial Cost to Company, Land | $ 12,960,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,497,683 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,270,611 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,960,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 22,768,294 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 35,728,294 |  |  |
Accumulated Depreciation | (13,049,192) |  |  |
Investment in Real Estate, Net | 22,679,102 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 28,044,297 |  |  |
Avenir Apartments [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Boston, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 241 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 114,321,619 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,568,840 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 121,890,459 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 121,890,459 |  |  |
Accumulated Depreciation | (41,528,064) |  |  |
Investment in Real Estate, Net | 80,362,395 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 81,652,924 |  |  |
Calvert Woodley [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 136 |  |  |
Initial Cost to Company, Land | $ 12,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,527,379 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,920,318 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 46,447,697 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 59,047,697 |  |  |
Accumulated Depreciation | (16,564,329) |  |  |
Investment in Real Estate, Net | $ 42,483,368 |  |  |
City Pointe [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Fullerton, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 183 |  |  |
Initial Cost to Company, Land | $ 6,863,792 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,476,208 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,386,136 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,863,792 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 40,862,344 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 47,726,136 |  |  |
Accumulated Depreciation | (18,504,841) |  |  |
Investment in Real Estate, Net | 29,221,295 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 39,624,887 |  |  |
Cleveland House [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 214 |  |  |
Initial Cost to Company, Land | $ 18,300,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 66,392,414 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,599,298 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,300,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 73,991,712 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 92,291,712 |  |  |
Accumulated Depreciation | (25,944,969) |  |  |
Investment in Real Estate, Net | $ 66,346,743 |  |  |
Elevé [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Glendale, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 208 |  |  |
Initial Cost to Company, Land | $ 14,080,560 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 56,419,440 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,363,125 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,080,560 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 57,782,565 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 71,863,125 |  |  |
Accumulated Depreciation | (18,219,994) |  |  |
Investment in Real Estate, Net | 53,643,131 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 38,397,494 |  |  |
Estancia at Santa Clara (fka Santa Clara) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Santa Clara, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 450 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 123,759,804 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,394,578 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 127,154,382 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 127,154,382 |  |  |
Accumulated Depreciation | (45,289,007) |  |  |
Investment in Real Estate, Net | $ 81,865,375 |  |  |
Fairchase [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Fairfax, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 392 |  |  |
Initial Cost to Company, Land | $ 23,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 87,722,321 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,216,170 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 23,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 89,938,491 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 113,438,491 |  |  |
Accumulated Depreciation | (30,699,514) |  |  |
Investment in Real Estate, Net | $ 82,738,977 |  |  |
Flats at DuPont Circle [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, D.C. |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 306 |  |  |
Initial Cost to Company, Land | $ 35,200,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 108,768,198 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,462,784 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 35,200,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 113,230,982 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 148,430,982 |  |  |
Accumulated Depreciation | (37,753,595) |  |  |
Investment in Real Estate, Net | $ 110,677,387 |  |  |
Glo [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 201 |  |  |
Initial Cost to Company, Land | $ 16,047,023 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 48,650,963 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,090,835 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 16,047,023 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 52,741,798 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 68,788,821 |  |  |
Accumulated Depreciation | (21,760,967) |  |  |
Investment in Real Estate, Net | 47,027,854 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 32,704,395 |  |  |
Heights on Capitol Hill [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 104 |  |  |
Initial Cost to Company, Land | $ 5,425,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,138,028 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,124,990 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,425,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 23,263,018 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 28,688,018 |  |  |
Accumulated Depreciation | (12,467,148) |  |  |
Investment in Real Estate, Net | 16,220,870 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 22,586,660 |  |  |
Kelvin Court (fka Alta Pacific) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Irvine, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 132 |  |  |
Initial Cost to Company, Land | $ 10,752,145 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,846,856 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,083,930 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,752,145 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 35,930,786 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 46,682,931 |  |  |
Accumulated Depreciation | (16,927,083) |  |  |
Investment in Real Estate, Net | 29,755,848 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 26,258,149 |  |  |
Kenwood Mews [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Burbank, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 141 |  |  |
Initial Cost to Company, Land | $ 14,100,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 24,662,883 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,383,683 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,100,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 29,046,566 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 43,146,566 |  |  |
Accumulated Depreciation | (17,007,785) |  |  |
Investment in Real Estate, Net | 26,138,781 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 37,626,316 |  |  |
La Terrazza at Colma Station [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Colma, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 155 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 41,251,044 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,175,723 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 45,426,767 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 45,426,767 |  |  |
Accumulated Depreciation | (23,081,823) |  |  |
Investment in Real Estate, Net | 22,344,944 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 25,029,507 |  |  |
Lindley Apartments [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Encino, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 129 |  |  |
Initial Cost to Company, Land | $ 5,805,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,705,000 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,288,945 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,805,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 27,993,945 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 33,798,945 |  |  |
Accumulated Depreciation | (12,248,777) |  |  |
Investment in Real Estate, Net | 21,550,168 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 28,042,734 |  |  |
Lofts 590 [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Arlington, VA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 212 |  |  |
Initial Cost to Company, Land | $ 20,100,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 67,909,023 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,125,639 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 20,100,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 69,034,662 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 89,134,662 |  |  |
Accumulated Depreciation | (22,984,204) |  |  |
Investment in Real Estate, Net | 66,150,458 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 43,012,615 |  |  |
Longview Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Waltham, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 348 |  |  |
Initial Cost to Company, Land | $ 20,880,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 90,255,509 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,702,122 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 20,880,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 103,957,631 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 124,837,631 |  |  |
Accumulated Depreciation | (57,354,859) |  |  |
Investment in Real Estate, Net | 67,482,772 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 84,280,484 |  |  |
Metro on First [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 102 |  |  |
Initial Cost to Company, Land | $ 8,540,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,209,981 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,804,678 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,540,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 15,014,659 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 23,554,659 |  |  |
Accumulated Depreciation | (8,458,788) |  |  |
Investment in Real Estate, Net | 15,095,871 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 21,491,495 |  |  |
Moda [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 251 |  |  |
Initial Cost to Company, Land | $ 12,649,228 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,842,012 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,379,781 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 12,649,228 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 39,221,793 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 51,871,021 |  |  |
Accumulated Depreciation | (17,514,997) |  |  |
Investment in Real Estate, Net | $ 34,356,024 |  |  |
Montierra (CA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 272 |  |  |
Initial Cost to Company, Land | $ 8,160,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,360,938 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,961,784 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 8,160,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 38,322,722 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 46,482,722 |  |  |
Accumulated Depreciation | (28,873,699) |  |  |
Investment in Real Estate, Net | 17,609,023 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 61,025,383 |  |  |
Notch [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Newcastle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 158 |  |  |
Initial Cost to Company, Land | $ 5,463,324 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,490,989 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 85,422 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,463,324 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 43,576,411 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 49,039,735 |  |  |
Accumulated Depreciation | (3,437,360) |  |  |
Investment in Real Estate, Net | 45,602,375 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Old Town Lofts [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Redmond, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 149 |  |  |
Initial Cost to Company, Land | $ 7,740,467 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,146,181 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,094,490 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,740,467 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 45,240,671 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 52,981,138 |  |  |
Accumulated Depreciation | (12,234,825) |  |  |
Investment in Real Estate, Net | 40,746,313 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 35,570,767 |  |  |
Olympus Towers [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 328 |  |  |
Initial Cost to Company, Land | $ 14,752,034 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 73,335,425 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 13,511,615 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 14,752,034 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 86,847,040 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 101,599,074 |  |  |
Accumulated Depreciation | (53,348,127) |  |  |
Investment in Real Estate, Net | 48,250,947 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 94,751,556 |  |  |
Park Place at San Mateo (fka San Mateo) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Mateo, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 575 |  |  |
Initial Cost to Company, Land | $ 71,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 211,907,141 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 16,378,744 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 71,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 228,285,885 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 300,185,885 |  |  |
Accumulated Depreciation | (81,177,243) |  |  |
Investment in Real Estate, Net | $ 219,008,642 |  |  |
Skyhouse Denver [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Denver, CO |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 354 |  |  |
Initial Cost to Company, Land | $ 13,562,331 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 126,360,318 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,107,660 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,562,331 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 127,467,978 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 141,030,309 |  |  |
Accumulated Depreciation | (20,582,877) |  |  |
Investment in Real Estate, Net | 120,447,432 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 74,189,118 |  |  |
SoMa Square Apartments (fka South Market) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Francisco, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 410 |  |  |
Initial Cost to Company, Land | $ 79,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 177,316,977 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 18,046,831 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 79,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 195,363,808 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 275,263,808 |  |  |
Accumulated Depreciation | (68,367,690) |  |  |
Investment in Real Estate, Net | $ 206,896,118 |  |  |
Teresina [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chula Vista, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 440 |  |  |
Initial Cost to Company, Land | $ 28,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,916,670 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,465,472 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 28,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 70,382,142 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 98,982,142 |  |  |
Accumulated Depreciation | (39,200,260) |  |  |
Investment in Real Estate, Net | 59,781,882 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 37,940,000 |  |  |
Vantage Hollywood [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 298 |  |  |
Initial Cost to Company, Land | $ 42,580,326 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 56,014,674 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,728,870 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 42,580,326 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 59,743,544 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 102,323,870 |  |  |
Accumulated Depreciation | (18,335,134) |  |  |
Investment in Real Estate, Net | 83,988,736 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 37,537,003 |  |  |
Vintage [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Ontario, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 300 |  |  |
Initial Cost to Company, Land | $ 7,059,230 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,677,762 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 2,278,751 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,059,230 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 49,956,513 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 57,015,743 |  |  |
Accumulated Depreciation | (26,867,509) |  |  |
Investment in Real Estate, Net | 30,148,234 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 49,136,797 |  |  |
Vintage at 425 Broadway (fka Promenade) [Memebr] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Santa Monica, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 60 |  |  |
Initial Cost to Company, Land | $ 9,000,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 13,961,523 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,985,863 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 9,000,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 15,947,386 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 24,947,386 |  |  |
Accumulated Depreciation | (6,073,401) |  |  |
Investment in Real Estate, Net | $ 18,873,985 |  |  |
West 54th [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | New York, NY |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 222 |  |  |
Initial Cost to Company, Land | $ 60,900,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 48,193,837 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,900,079 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 60,900,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 53,093,916 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 113,993,916 |  |  |
Accumulated Depreciation | (20,838,067) |  |  |
Investment in Real Estate, Net | 93,155,849 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 49,701,588 |  |  |
Portfolio/Entity Encumbrances [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 0 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 0 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 799,153,560 |  |  |
Investment in Real Estate - Wholly Owned Encumbered [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 9,113 |  |  |
Initial Cost to Company, Land | $ 778,637,659 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,442,658,555 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 192,940,619 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 778,637,659 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 2,635,599,174 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 3,414,236,833 |  |  |
Accumulated Depreciation | (1,014,105,838) |  |  |
Investment in Real Estate, Net | 2,400,130,995 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 1,959,052,708 |  |  |
2300 Elliott [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 92 |  |  |
Initial Cost to Company, Land | $ 796,800 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,173,725 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,998,442 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 796,800 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 15,172,167 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 15,968,967 |  |  |
Accumulated Depreciation | (12,907,247) |  |  |
Investment in Real Estate, Net | 3,061,720 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Bellevue Meadows [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bellevue, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 180 |  |  |
Initial Cost to Company, Land | $ 4,507,100 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,574,814 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,405,508 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,507,100 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 18,980,322 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 23,487,422 |  |  |
Accumulated Depreciation | (15,232,652) |  |  |
Investment in Real Estate, Net | 8,254,770 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Canyon Ridge [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Diego, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 162 |  |  |
Initial Cost to Company, Land | $ 4,869,448 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,955,063 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 4,338,392 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,869,448 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 16,293,455 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 21,162,903 |  |  |
Accumulated Depreciation | (13,111,514) |  |  |
Investment in Real Estate, Net | 8,051,389 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Country Oaks [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Agoura Hills, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 256 |  |  |
Initial Cost to Company, Land | $ 6,105,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,561,865 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,744,470 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,105,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 37,306,335 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 43,411,335 |  |  |
Accumulated Depreciation | (25,320,149) |  |  |
Investment in Real Estate, Net | 18,091,186 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Harrison Square (fka Elliot Bay) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Seattle, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 166 |  |  |
Initial Cost to Company, Land | $ 7,600,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 35,844,345 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 6,184,547 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 7,600,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 42,028,892 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 49,628,892 |  |  |
Accumulated Depreciation | (16,285,713) |  |  |
Investment in Real Estate, Net | 33,343,179 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Lantern Cove [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Foster City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 232 |  |  |
Initial Cost to Company, Land | $ 6,945,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,064,976 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,636,723 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 6,945,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 31,701,699 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 38,646,699 |  |  |
Accumulated Depreciation | (22,406,448) |  |  |
Investment in Real Estate, Net | 16,240,251 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Radius Koreatown [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 301 |  |  |
Initial Cost to Company, Land | $ 32,494,154 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 84,645,202 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 640,890 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 32,494,154 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 85,286,092 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 117,780,246 |  |  |
Accumulated Depreciation | (18,649,423) |  |  |
Investment in Real Estate, Net | 99,130,823 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Rosecliff [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Quincy, MA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 156 |  |  |
Initial Cost to Company, Land | $ 5,460,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,721,570 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 5,177,947 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,460,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 20,899,517 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 26,359,517 |  |  |
Accumulated Depreciation | (15,599,076) |  |  |
Investment in Real Estate, Net | 10,760,441 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Schooner Bay I [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Foster City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 168 |  |  |
Initial Cost to Company, Land | $ 5,345,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,390,618 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,976,491 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,345,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 28,367,109 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 33,712,109 |  |  |
Accumulated Depreciation | (19,122,126) |  |  |
Investment in Real Estate, Net | 14,589,983 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Schooner Bay II [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Foster City, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 144 |  |  |
Initial Cost to Company, Land | $ 4,550,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,064,764 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 7,043,955 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 4,550,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 25,108,719 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 29,658,719 |  |  |
Accumulated Depreciation | (16,966,296) |  |  |
Investment in Real Estate, Net | 12,692,423 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
St Johns West [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Austin, TX |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 297 |  |  |
Initial Cost to Company, Land | $ 10,097,109 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,926,778 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 23,181 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 10,097,109 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 47,949,959 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 58,047,068 |  |  |
Accumulated Depreciation | (3,613,948) |  |  |
Investment in Real Estate, Net | 54,433,120 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Venn at Main [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Bellevue, WA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 350 |  |  |
Initial Cost to Company, Land | $ 26,626,497 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 151,520,448 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 722,931 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 26,626,497 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 152,243,379 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 178,869,876 |  |  |
Accumulated Depreciation | (27,128,523) |  |  |
Investment in Real Estate, Net | 151,741,353 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Virgil Square [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Los Angeles, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 142 |  |  |
Initial Cost to Company, Land | $ 5,500,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,216,613 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 3,995,308 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,500,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 19,211,921 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 24,711,921 |  |  |
Accumulated Depreciation | (11,537,883) |  |  |
Investment in Real Estate, Net | 13,174,038 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
Partially Owned Unencumbered [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 2,646 |  |  |
Initial Cost to Company, Land | $ 120,896,108 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 473,660,781 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 66,888,785 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 120,896,108 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 540,549,566 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 661,445,674 |  |  |
Accumulated Depreciation | (217,880,998) |  |  |
Investment in Real Estate, Net | 443,564,676 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 |  |  |
9th & W [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Washington, DC |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 0 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 24,306,736 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 0 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 24,306,736 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 24,306,736 |  |  |
Accumulated Depreciation | 0 |  |  |
Investment in Real Estate, Net | 24,306,736 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 1,772,313 |  |  |
Aero Apartments [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Alameda, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 200 |  |  |
Initial Cost to Company, Land | $ 13,107,242 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 100,253,427 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 33,272 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 13,107,242 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 100,286,699 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 113,393,941 |  |  |
Accumulated Depreciation | (2,386,616) |  |  |
Investment in Real Estate, Net | 111,007,325 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 61,662,484 |  |  |
Canyon Creek (CA) [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | San Ramon, CA |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 268 |  |  |
Initial Cost to Company, Land | $ 5,425,000 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,812,120 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 8,423,666 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,425,000 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 27,235,786 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 32,660,786 |  |  |
Accumulated Depreciation | (20,255,679) |  |  |
Investment in Real Estate, Net | 12,405,107 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 28,208,225 |  |  |
Wisconsin Place [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Description Of Location | Chevy Chase, MD |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 432 |  |  |
Initial Cost to Company, Land | $ 0 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 172,089,355 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,873,790 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 0 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 173,963,145 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 173,963,145 |  |  |
Accumulated Depreciation | (59,910,024) |  |  |
Investment in Real Estate, Net | 114,053,121 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 144,049,913 |  |  |
Partially Owned Encumbered [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 900 |  |  |
Initial Cost to Company, Land | $ 18,532,242 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 315,461,638 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 10,330,728 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 18,532,242 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 325,792,366 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 344,324,608 |  |  |
Accumulated Depreciation | (82,552,319) |  |  |
Investment in Real Estate, Net | 261,772,289 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 232,148,309 |  |  |
Total Consolidated Investment in Real Estate [Member] |  |  |  |
Real Estate And Accumulated Depreciation Abstract |  |  |  |
Real Estate And Accumulated Depreciation Units | ApartmentUnit | 80,407 |  |  |
Initial Cost to Company, Land | $ 5,860,950,463 |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,441,488,521 |  |  |
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Building And Fixtures | 1,970,467,401 |  |  |
Gross Amount Carried at close of period 12/31/2021, Land | 5,860,950,463 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements And Furnitures And Fixtures | 22,411,955,922 |  |  |
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements And Furnitures And Fixtures | 28,272,906,385 |  |  |
Accumulated Depreciation | (8,354,282,201) |  |  |
Investment in Real Estate, Net | 19,918,624,184 |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 2,191,201,017 |  |  |

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