Note 4 - Loans Held for Investment, Net (Details Textual) - USD ($)	1 Months Ended	3 Months Ended
Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Financing Receivable, Nonaccrual	$ 3,409,628	$ 3,409,628		$ 3,505,288
Impaired Financing Receivable, Interest Income, Nonaccrual		0	$ 0
Financing Receivable, Troubled Debt Restructuring	$ 70,000	$ 70,000		$ 71,000
Veterans Administration Loan [Member]
Number of Receivable Commitments Outstanding	0	0		0
Small Business Administration [Member]
Financing Receivable, Nonaccrual	$ 2,300,000	$ 2,300,000		$ 2,300,000
Nonaccrual Loan Secure Percentage	68.00%	68.00%		66.00%
COVID19 [Member]
Allowance for Loan and Lease Losses, Period Increase (Decrease), Total	$ 350,000
Allowance for Loan and Lease Losses, Period Increase, Percentage	12.00%
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Nonaccrual	$ 2,642,676	$ 2,642,676		$ 2,718,731
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable, before Allowance for Credit Loss, Total	$ 19,200,000	$ 19,200,000		$ 16,100,000

Represents the percentage increase in allowance for loan and lease losses.

No definition available.

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- Definition

Amount of interest income recognized on loans while in nonaccrual status.

+ References

No definition available.

+ Details

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- Definition

It represents the percentage of nonaccrual loans secured.

+ References

No definition available.

+ Details

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- Definition

The number of receivable commitments outstanding.

+ References

No definition available.

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- Definition

Amount of increase (decrease) of allowance reserve for credit loss.

+ References

No definition available.

+ Details

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- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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- Definition

Amount of financing receivable on nonaccrual status.

+ References

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- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

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