Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount of assets pledged to secure a debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average interest rate of debt outstanding.

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of the cost of borrowed funds accounted for as interest expense.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of cash inflow from Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Note 4 - Debt (Details Textual) - USD ($)			1 Months Ended				9 Months Ended
Note 4 - Debt (Details Textual) - USD ($)	May 03, 2021	Aug. 03, 2020	May 31, 2020	Apr. 30, 2020	Mar. 31, 2020	Mar. 31, 2017	Sep. 30, 2020	Sep. 30, 2019	Jul. 30, 2020	Dec. 31, 2019
Proceeds from Issuance of Long-term Debt, Total							$ 11,629,800
Long-term Debt, Total							$ 15,097,960			$ 3,475,088
Debt, Weighted Average Interest Rate							1.50%			3.70%
Revolving Credit Facility [Member] \| American Bank & Trust [Member]
Debt Instrument, Collateral Amount							$ 5,000,000
Line of Credit Facility, Maximum Borrowing Capacity							1,750,000
Interest Expense, Total							$ 0	$ 0
Revolving Credit Facility [Member] \| American Bank & Trust [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate							2.00%
Revolving Credit Facility [Member] \| American Bank & Trust [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate							3.50%
Revolving Credit Facility [Member] \| Quad City Bank & Trust [Member]
Debt Instrument, Collateral Amount		$ 2,000,000
Line of Credit Facility, Maximum Borrowing Capacity		$ 2,000,000
Revolving Credit Facility [Member] \| Quad City Bank & Trust [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Long-term Debt, Total				$ 1,600,000
Federal Home Loan Bank of Chicago [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available							$ 33,000,000
Federal Home Loan Bank of Chicago [Member] \| Federal Home Loan Bank Advances, One [Member]
Debt Instrument, Term (Year)					5 years
Debt Instrument, Interest Rate, Stated Percentage					1.40%
Proceeds from FHLBank Borrowings, Financing Activities					$ 6,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged					$ 6,800,000
Federal Home Loan Bank of Chicago [Member] \| Federal Home Loan Bank Advances, Two [Member]
Debt Instrument, Term (Year)			1 year
Debt Instrument, Interest Rate, Stated Percentage			0.00%
Proceeds from FHLBank Borrowings, Financing Activities			$ 4,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged			$ 7,400,000
Federal Home Loan Bank of Chicago [Member] \| Federal Home Loan Bank Advances, Three [Member]
Debt Instrument, Interest Rate, Stated Percentage									0.74%
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged									$ 0
Federal Home Loan Bank of Chicago [Member] \| Federal Home Loan Bank Advances, Three [Member] \| Forecast [Member]
Proceeds from FHLBank Borrowings, Financing Activities	$ 4,000,000
Loans Payable [Member]
Debt Instrument, Face Amount						$ 3,500,000
Debt Instrument, Term (Year)						5 years
Debt Instrument, Interest Rate, Stated Percentage						3.65%
Debt Instrument, Collateral Amount						$ 1,000,000