Loans Held for Investment - Summary of the Companys loan portfolio (Details)	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($) Loans	Dec. 31, 2019 USD ($) Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Loans \| Loans	22	23
Principal Balance	$ 402,687,438	$ 377,388,317
Loans Held for Investment	402,969,513	378,612,768
Loans Receivable, Fair Value Disclosure	$ 399,609,378	$ 379,160,415
Finance Lease, Weighted Average Discount Rate, Percent	9.36%	9.65%
Finance Lease, Weighted Average Remaining Lease Term	1 year 11 months 23 days	2 years 2 months
Fixed Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Loans \| Loans	8	8
Principal Balance	$ 81,751,847	$ 70,692,767
Loans Receivable with Fixed Rates of Interest	82,483,887	71,469,137
Loans Receivable, Fair Value Disclosure	$ 82,249,333	$ 71,516,432
Finance Lease, Weighted Average Discount Rate, Percent	12.76%	11.93%
Finance Lease, Weighted Average Remaining Lease Term	1 year 9 months 4 days	2 years 3 months
Floating rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Loans \| Loans	14	15
Principal Balance	$ 320,935,591	$ 306,695,550
Loans Receivable with Variable Rates of Interest	320,485,626	307,143,631
Loans Receivable, Fair Value Disclosure	$ 317,360,045	$ 307,643,983
Finance Lease, Weighted Average Discount Rate, Percent	8.50%	9.13%
Finance Lease, Weighted Average Remaining Lease Term	2 years 14 days	2 years 1 month

Number of mortgage loans within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Footnote 3
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
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Weighted average discount rate for finance lease calculated at point in time.

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-Publisher FASB
-Name Accounting Standards Codification
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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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-Name Accounting Standards Codification
-Topic 310
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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Amount of loan with fixed rate of interest.

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Amount of loan with variable or adjustable rate of interest.

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This is the result of the principal amount outstanding of total loans managed or securitized less securitized loans and loans that are in the process of being securitized.

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