Note 13 - Subsequent Events (Details Textual) - Revolving Credit Facility [Member] - Loan and Security Agreement With Bremer Bank, National Association [Member] - Subsequent Event [Member] $ in Millions |
Apr. 27, 2022
USD ($)
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| Line of Credit Facility, Maximum Borrowing Capacity | $ 40 |
| Debt Instrument, Minimum Interest Rate Required | 1.80% |
| Debt Instrument, Interest Rate During Period | 2.50% |
| Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio | 1.20 |
| Debt Instrument, Covenant, Maximum Debt to Cash Flow Ratio | 2 |
| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | |
| Debt Instrument, Basis Spread on Variable Rate | 1.85% |
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- Definition Maximum debt to cash flow ratio required under debt instrument. No definition available.
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- Definition Minimum debt service coverage ratio required under debt instrument. No definition available.
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- Definition The minimum interest rate required for debt instrument. No definition available.
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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