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SCHEDULE OF REAL ESTATE PROPERTY COST, IMPROVEMENTS AND DEPRECIATION (Details) - USD ($) |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 19, 2021 | Feb. 19, 2021 | Jan. 28, 2021 | Jan. 28, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | $ 120,788,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 30,297,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 164,472,000 |  |  |
Acquisition Price |  |  |  |  |  | 195,452,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 26,279,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 30,330,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 155,296,000 |  |  |
Total cost |  |  |  |  |  | 211,905,000 |  |  |
Accumulated Depreciation & Depreciation |  |  |  |  |  | 42,387,199 | [1] | $ 44,113,962 | $ 43,567,809
Reserve for Impairment |  |  |  |  |  | 3,264,000 |  |  |
NBV Real Estate |  |  |  |  |  | $ 166,254,000 |  |  |
Building and Building Improvements [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation |  |  |  |  |  | 39 years |  |  |
Garden Gateway [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from Sale of Real Estate |  | $ 11,200,000 | $ 11,200,000 |  |  |  |  |  |
Waterman Plaza [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from Sale of Real Estate |  |  |  | $ 3,500,000 | $ 3,500,000 |  |  |  |
Industrial Office Properties [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | $ 73,618,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 16,539,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 104,660,000 |  |  |
Acquisition Price |  |  |  |  |  | 121,882,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 23,723,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 16,539,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 94,071,000 |  |  |
Total cost |  |  |  |  |  | 134,333,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 34,743,000 |  |  |
Reserve for Impairment |  |  |  |  |  | 400,000 |  |  |
NBV Real Estate |  |  |  |  |  | 99,190,000 |  |  |
Industrial Office Properties [Member] | Garden Gateway [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances | [2] |  |  |  |  | 5,861,000 |  |  |
Land, Initial Cost | [2] |  |  |  |  | 3,035,000 |  |  |
Building and Improvements, Initial Cost | [2] |  |  |  |  | 12,091,000 |  |  |
Acquisition Price | [2] |  |  |  |  | 15,126,000 |  |  |
Capitalized Improvements | [2] |  |  |  |  | 3,329,000 |  |  |
Land Cost, Total Cost | [2] |  |  |  |  | 3,035,000 |  |  |
Building & Improvements, Total Cost | [2] |  |  |  |  | 10,874,000 |  |  |
Total cost | [2] |  |  |  |  | 17,238,000 |  |  |
Accumulated Depreciation & Depreciation | [1],[2] |  |  |  |  | 5,774,000 |  |  |
Reserve for Impairment | [2] |  |  |  |  |  |  |  |
NBV Real Estate | [2] |  |  |  |  | 11,464,000 |  |  |
Industrial Office Properties [Member] | Executive Park [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances | [2] |  |  |  |  | 2,986,000 |  |  |
Land, Initial Cost | [2] |  |  |  |  | 583,000 |  |  |
Building and Improvements, Initial Cost | [2] |  |  |  |  | 8,815,000 |  |  |
Acquisition Price | [2] |  |  |  |  | 10,081,000 |  |  |
Capitalized Improvements | [2] |  |  |  |  | 1,473,000 |  |  |
Land Cost, Total Cost | [2] |  |  |  |  | 583,000 |  |  |
Building & Improvements, Total Cost | [2] |  |  |  |  | 5,561,000 |  |  |
Total cost | [2] |  |  |  |  | 7,617,000 |  |  |
Accumulated Depreciation & Depreciation | [1],[2] |  |  |  |  | 2,510,000 |  |  |
Reserve for Impairment | [2] |  |  |  |  |  |  |  |
NBV Real Estate | [2] |  |  |  |  | 5,107,000 |  |  |
Industrial Office Properties [Member] | Genesis Plaza [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 6,276,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,400,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 8,600,000 |  |  |
Acquisition Price |  |  |  |  |  | 10,000,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 2,625,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,400,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 8,323,000 |  |  |
Total cost |  |  |  |  |  | 12,348,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 3,697,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 8,651,000 |  |  |
Industrial Office Properties [Member] | Dakota Center [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 9,900,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 832,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 8,743,000 |  |  |
Acquisition Price |  |  |  |  |  | 9,575,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 1,306,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 832,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 9,960,000 |  |  |
Total cost |  |  |  |  |  | 12,098,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 3,500,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 8,598,000 |  |  |
Industrial Office Properties [Member] | Grand Pacific Center [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 3,738,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 413,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 4,926,000 |  |  |
Acquisition Price |  |  |  |  |  | 5,339,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 904,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 413,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 6,099,000 |  |  |
Total cost |  |  |  |  |  | 7,416,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 1,732,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 5,684,000 |  |  |
Industrial Office Properties [Member] | Arapahoe Center [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 7,932,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,420,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 10,430,000 |  |  |
Acquisition Price |  |  |  |  |  | 11,850,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 2,078,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,420,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 8,857,000 |  |  |
Total cost |  |  |  |  |  | 12,355,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 3,122,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 9,233,000 |  |  |
Industrial Office Properties [Member] | West Fargo Industrial [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 4,263,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,693,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 6,207,000 |  |  |
Acquisition Price |  |  |  |  |  | 7,900,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 264,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,693,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 6,099,000 |  |  |
Total cost |  |  |  |  |  | 8,056,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 995,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 7,061,000 |  |  |
Industrial Office Properties [Member] | The 300 N.P [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 2,274,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 135,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 3,715,000 |  |  |
Acquisition Price |  |  |  |  |  | 3,850,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 319,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 135,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 3,589,000 |  |  |
Total cost |  |  |  |  |  | 4,043,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 764,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 3,279,000 |  |  |
Industrial Office Properties [Member] | Highland Court [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances | [2] |  |  |  |  | 6,275,000 |  |  |
Land, Initial Cost | [2] |  |  |  |  | 3,608,000 |  |  |
Building and Improvements, Initial Cost | [2] |  |  |  |  | 9,442,000 |  |  |
Acquisition Price | [2] |  |  |  |  | 13,050,000 |  |  |
Capitalized Improvements | [2] |  |  |  |  | 3,408,000 |  |  |
Land Cost, Total Cost | [2] |  |  |  |  | 3,608,000 |  |  |
Building & Improvements, Total Cost | [2] |  |  |  |  | 7,767,000 |  |  |
Total cost | [2] |  |  |  |  | 14,783,000 |  |  |
Accumulated Depreciation & Depreciation | [1],[2] |  |  |  |  | 3,883,000 |  |  |
Reserve for Impairment | [2] |  |  |  |  | 400,000 |  |  |
NBV Real Estate | [2] |  |  |  |  | 10,500,000 |  |  |
Industrial Office Properties [Member] | One Park Centre [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 6,385,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,206,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 7,944,000 |  |  |
Acquisition Price |  |  |  |  |  | 9,150,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 1,952,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,206,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 7,416,000 |  |  |
Total cost |  |  |  |  |  | 10,574,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 1,987,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 8,587,000 |  |  |
Industrial Office Properties [Member] | Shea Center II [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 17,728,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 2,214,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 23,747,000 |  |  |
Acquisition Price |  |  |  |  |  | 25,961,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 6,065,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 2,214,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 19,526,000 |  |  |
Total cost |  |  |  |  |  | 27,805,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 6,779,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 21,026,000 |  |  |
Retail Properties [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 19,087,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 6,206,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 22,950,000 |  |  |
Acquisition Price |  |  |  |  |  | 29,156,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 2,556,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 6,239,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 24,363,000 |  |  |
Total cost |  |  |  |  |  | 33,158,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 5,740,000 |  |  |
Reserve for Impairment |  |  |  |  |  | 2,864,000 |  |  |
NBV Real Estate |  |  |  |  |  | 24,554,000 |  |  |
Retail Properties [Member] | World Plaza [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances | [2] |  |  |  |  | 5,803,000 |  |  |
Land, Initial Cost | [2] |  |  |  |  | 1,698,000 |  |  |
Building and Improvements, Initial Cost | [2] |  |  |  |  | 6,232,000 |  |  |
Acquisition Price | [2] |  |  |  |  | 7,930,000 |  |  |
Capitalized Improvements | [2] |  |  |  |  | 1,761,000 |  |  |
Land Cost, Total Cost | [2] |  |  |  |  | 1,698,000 |  |  |
Building & Improvements, Total Cost | [2] |  |  |  |  | 8,758,000 |  |  |
Total cost | [2] |  |  |  |  | 12,217,000 |  |  |
Accumulated Depreciation & Depreciation | [1],[2] |  |  |  |  | 2,246,000 |  |  |
Reserve for Impairment | [2] |  |  |  |  | 700,000 |  |  |
NBV Real Estate | [2] |  |  |  |  | 9,271,000 |  |  |
Retail Properties [Member] | Waterman Plaza [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances | [2] |  |  |  |  | 3,208,000 |  |  |
Land, Initial Cost | [2] |  |  |  |  | 2,350,000 |  |  |
Building and Improvements, Initial Cost | [2] |  |  |  |  | 4,814,000 |  |  |
Acquisition Price | [2] |  |  |  |  | 7,164,000 |  |  |
Capitalized Improvements | [2] |  |  |  |  | 239,000 |  |  |
Land Cost, Total Cost | [2] |  |  |  |  | 2,383,000 |  |  |
Building & Improvements, Total Cost | [2] |  |  |  |  | 4,324,000 |  |  |
Total cost | [2] |  |  |  |  | 6,946,000 |  |  |
Accumulated Depreciation & Depreciation | [1],[2] |  |  |  |  | 1,282,000 |  |  |
Reserve for Impairment | [2] |  |  |  |  | 2,164,000 |  |  |
NBV Real Estate | [2] |  |  |  |  | 3,500,000 |  |  |
Retail Properties [Member] | Union Town Center [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 8,316,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,750,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 9,462,000 |  |  |
Acquisition Price |  |  |  |  |  | 11,212,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 513,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,750,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 8,932,000 |  |  |
Total cost |  |  |  |  |  | 11,195,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 1,851,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 9,344,000 |  |  |
Retail Properties [Member] | Research Parkway [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 1,760,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 408,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 2,442,000 |  |  |
Acquisition Price |  |  |  |  |  | 2,850,000 |  |  |
Capitalized Improvements |  |  |  |  |  | 43,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 408,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 2,349,000 |  |  |
Total cost |  |  |  |  |  | 2,800,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 361,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 2,439,000 |  |  |
Model Home [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 28,083,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 7,552,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 36,862,000 |  |  |
Acquisition Price |  |  |  |  |  | 44,414,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 7,552,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 36,862,000 |  |  |
Total cost |  |  |  |  |  | 44,414,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 1,904,000 |  |  |
NBV Real Estate |  |  |  |  |  | 42,510,000 |  |  |
Model Home [Member] | Model Homes -NDMHR, LP [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 974,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 534,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 2,047,000 |  |  |
Acquisition Price |  |  |  |  |  | 2,581,000 |  |  |
Capitalized Improvements |  |  |  |  |  |  |  |  |
Land Cost, Total Cost |  |  |  |  |  | 534,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 2,047,000 |  |  |
Total cost |  |  |  |  |  | 2,581,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 197,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 2,384,000 |  |  |
Model Home [Member] | Model Homes-DMH LP #202 [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 3,149,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 741,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 4,238,000 |  |  |
Acquisition Price |  |  |  |  |  | 4,979,000 |  |  |
Capitalized Improvements |  |  |  |  |  |  |  |  |
Land Cost, Total Cost |  |  |  |  |  | 741,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 4,238,000 |  |  |
Total cost |  |  |  |  |  | 4,979,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 337,000 |  |  |
Reserve for Impairment |  |  |  |  |  |  |  |  |
NBV Real Estate |  |  |  |  |  | 4,642,000 |  |  |
Model Home [Member] | Model Homes-DMH LP #203 [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 5,271,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,600,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 7,132,000 |  |  |
Acquisition Price |  |  |  |  |  | 8,732,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,600,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 7,132,000 |  |  |
Total cost |  |  |  |  |  | 8,732,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 441,000 |  |  |
NBV Real Estate |  |  |  |  |  | 8,291,000 |  |  |
Model Home [Member] | Model Homes-DMH LP #204 [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 5,385,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,412,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 6,787,000 |  |  |
Acquisition Price |  |  |  |  |  | 8,199,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,412,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 6,787,000 |  |  |
Total cost |  |  |  |  |  | 8,199,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 345,000 |  |  |
NBV Real Estate |  |  |  |  |  | 7,854,000 |  |  |
Model Home [Member] | Model Homes-DMH LP #205 [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 5,214,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,461,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 6,287,000 |  |  |
Acquisition Price |  |  |  |  |  | 7,748,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,461,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 6,287,000 |  |  |
Total cost |  |  |  |  |  | 7,748,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 179,000 |  |  |
NBV Real Estate |  |  |  |  |  | 7,569,000 |  |  |
Model Home [Member] | Model Homes-DMH LP #206 [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 1,696,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 294,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 2,181,000 |  |  |
Acquisition Price |  |  |  |  |  | 2,475,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 294,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 2,181,000 |  |  |
Total cost |  |  |  |  |  | 2,475,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 27,000 |  |  |
NBV Real Estate |  |  |  |  |  | 2,448,000 |  |  |
Model Home [Member] | Model Homes-NMH Inc. [Member] |  |  |  |  |  |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |  |  |  |
Encumbrances |  |  |  |  |  | 6,394,000 |  |  |
Land, Initial Cost |  |  |  |  |  | 1,510,000 |  |  |
Building and Improvements, Initial Cost |  |  |  |  |  | 8,190,000 |  |  |
Acquisition Price |  |  |  |  |  | 9,700,000 |  |  |
Land Cost, Total Cost |  |  |  |  |  | 1,510,000 |  |  |
Building & Improvements, Total Cost |  |  |  |  |  | 8,190,000 |  |  |
Total cost |  |  |  |  |  | 9,700,000 |  |  |
Accumulated Depreciation & Depreciation | [1] |  |  |  |  | 378,000 |  |  |
NBV Real Estate |  |  |  |  |  | $ 9,322,000 |  |  |
[1] | Depreciation is computed on a straight-line basis using useful lives up to 39 years
[2] | Property held for sale as of December 31, 2020.

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