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Note 15 - Subsequent Events (Details Textual) - USD ($) $ in Millions | Apr. 30, 2022 | Apr. 29, 2022 | Jul. 06, 2022 | Mar. 31, 2022 | Mar. 11, 2022 | May 19, 2021 | Apr. 12, 2021 | Mar. 08, 2021
--- | --- | --- | --- | --- | --- | --- | --- | ---
ABL Facility [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | $ 68.4 |  |  |  |
ABL Facility [Member] | JPMorgan Chase Bank N.A. [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | $ 75.0 | $ 75.0 | $ 40.0 |  |
Line of Credit Facility, Maximum Borrowing Capacity, Maximum Conditional Increase |  |  |  |  | 10.0 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Conditional Increase, Minimum Increments |  |  |  |  | $ 5.0 |  |  |
Debt Instrument, Borrowing Base, Percent of Accounts Receivable |  |  |  | 85.00% |  |  |  |
Revolving Credit Facility [Member] | JPMorgan Chase Bank N.A. [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | $ 20.0 | $ 10.0
Subsequent Event [Member] | ABL Facility [Member] | JPMorgan Chase Bank N.A. [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 150.0 |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Maximum Conditional Increase |  | 25.0 |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Conditional Increase, Minimum Increments |  | $ 5.0 |  |  |  |  |  |
Debt Instrument, Borrowing Base, Percent of Accounts Receivable |  | 90.00% |  |  |  |  |  |
Debt Instrument, Debt Coverage Ratio, Trigger |  | 15.00% |  |  |  |  |  |
Subsequent Event [Member] | ABL Facility [Member] | JPMorgan Chase Bank N.A. [Member] | Prime Rate [Member] |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 1.00% |  |  |  |  |  |
Subsequent Event [Member] | Revolving Credit Facility [Member] | JPMorgan Chase Bank N.A. [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Commitment Fee Amount |  | $ 22.5 |  |  |  |  |  |
Subsequent Event [Member] | Revolving Credit Facility [Member] | BMO Harris Bank, N.A. [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 50.0 |  |  |  |  |
Plateplus Inc. [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Payments to Acquire Productive Assets, Total | $ 63.8 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | 516,041 |  |  |  |  |  |  |

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