Debt - Details of each borrowing under Repurchase agreements(Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Debt Instrument
Principal Balance	$ 567,520,973	$ 480,151,151
Principal amount	173,698,002	43,974,608
UBS Master Repurchase Agreement
Debt Instrument
Principal Balance	84,468,000	67,384,000
Carrying Amount	85,838,940	68,509,209
Fair Value	86,195,057	68,981,995
Principal amount	58,169,600	44,569,600
UBS Master Repurchase Agreement \| 14th & Alice Street Owner, LLC
Debt Instrument
Principal Balance	39,468,000	39,384,000
Carrying Amount	40,197,784	40,089,153
Fair Value	$ 40,222,586	$ 40,130,448
Borrowing Date	Nov. 08, 2021	Nov. 08, 2021
Principal amount	$ 25,599,600	$ 25,599,600
UBS Master Repurchase Agreement \| 14th & Alice Street Owner, LLC \| LIBOR
Debt Instrument
Interest Rate	1.45%	1.45%
UBS Master Repurchase Agreement \| 14th & Alice Street Owner, LLC \| LIBOR \| Floor rate
Debt Instrument
Interest Rate	0.10%	0.10%
UBS Master Repurchase Agreement \| NB Factory TIC 1, LLC
Debt Instrument
Principal Balance	$ 28,000,000	$ 28,000,000
Carrying Amount	28,529,857	28,420,056
Fair Value	$ 28,861,172	$ 28,851,547
Borrowing Date	Nov. 08, 2021	Nov. 08, 2021
Principal amount	$ 18,970,000	$ 18,970,000
UBS Master Repurchase Agreement \| NB Factory TIC 1, LLC \| LIBOR
Debt Instrument
Interest Rate	1.74%	1.74%
UBS Master Repurchase Agreement \| NB Factory TIC 1, LLC \| LIBOR \| Floor rate
Debt Instrument
Interest Rate	0.10%	0.10%
UBS Master Repurchase Agreement \| Grandview’s Madison Place, LLC
Debt Instrument
Principal Balance	$ 17,000,000
Carrying Amount	17,111,299
Fair Value	$ 17,111,299
Borrowing Date	Mar. 07, 2022
UBS Master Repurchase Agreement \| Grandview’s Madison Place, LLC \| SOFR
Debt Instrument
Interest Rate	1.965%
Uncommitted Master Repurchase Agreement
Debt Instrument
Principal Balance	$ 163,808,250
Carrying Amount	164,858,570
Fair Value	163,518,142
Uncommitted Master Repurchase Agreement \| 330 Tryon DE LLC
Debt Instrument
Principal Balance	22,800,000
Carrying Amount	22,903,651
Fair Value	$ 22,638,331
Borrowing Date	Feb. 18, 2022
Principal amount	$ 18,240,000
Uncommitted Master Repurchase Agreement \| 330 Tryon DE LLC \| SOFR
Debt Instrument
Interest Rate	2.015%
Uncommitted Master Repurchase Agreement \| 330 Tryon DE LLC \| SOFR \| Floor rate
Debt Instrument
Interest Rate	0.10%
Uncommitted Master Repurchase Agreement \| 1389 Peachtree St, L.P. and Others
Debt Instrument
Principal Balance	$ 53,970,491
Carrying Amount	54,221,854
Fair Value	$ 53,083,178
Borrowing Date	Feb. 18, 2022
Principal amount	$ 40,285,866
Uncommitted Master Repurchase Agreement \| 1389 Peachtree St, L.P. and Others \| SOFR
Debt Instrument
Interest Rate	2.465%
Uncommitted Master Repurchase Agreement \| AGRE DCP Palm Springs LLC
Debt Instrument
Principal Balance	$ 43,222,381
Carrying Amount	43,696,133
Fair Value	$ 43,738,712
Borrowing Date	Feb. 18, 2022
Principal amount	$ 28,094,548
Uncommitted Master Repurchase Agreement \| AGRE DCP Palm Springs LLC \| SOFR
Debt Instrument
Interest Rate	1.315%
Uncommitted Master Repurchase Agreement \| AGRE DCP Palm Springs LLC \| SOFR \| Floor rate
Debt Instrument
Interest Rate	1.80%
Uncommitted Master Repurchase Agreement \| Patrick Henry Recovery Acquisition LLC
Debt Instrument
Principal Balance	$ 18,000,000
Carrying Amount	18,041,590
Fair Value	$ 18,049,540
Borrowing Date	Feb. 18, 2022
Principal amount	$ 14,400,000
Uncommitted Master Repurchase Agreement \| Patrick Henry Recovery Acquisition LLC \| SOFR
Debt Instrument
Interest Rate	0.865%
Uncommitted Master Repurchase Agreement \| Patrick Henry Recovery Acquisition LLC \| SOFR \| Floor rate
Debt Instrument
Interest Rate	1.50%
Uncommitted Master Repurchase Agreement \| University Park Berkeley, LLC
Debt Instrument
Principal Balance	$ 25,815,378
Carrying Amount	25,995,342
Fair Value	$ 26,008,381
Borrowing Date	Feb. 18, 2022
Principal amount	$ 17,329,135
Uncommitted Master Repurchase Agreement \| University Park Berkeley, LLC \| SOFR
Debt Instrument
Interest Rate	1.365%
Uncommitted Master Repurchase Agreement \| University Park Berkeley, LLC \| SOFR \| Floor rate
Debt Instrument
Interest Rate	1.50%

Carrying amount of assets sold under agreements to repurchase when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(i))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(i))
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Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(i))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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- Definition

Date the debt instrument was issued, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
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-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ References

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