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Note 14 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Effective Income Tax Rate Reconciliation, Percent, Total |  | 1.60% | 8.10% | 24.20% |
Deferred Tax Assets, Valuation Allowance, Total | $ (0) | $ (0) | $ 1,937 |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | (1,900) | (1,900) |  |  |
Unrecognized Tax Benefits, Ending Balance | 0 | $ 0 | $ 0 | $ 1,220 | $ 1,132
Open Tax Year |  | 2018 2019 2020 2021 |  |  |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |
Operating Loss Carryforwards, Including Limitation Amount | 17,200 | $ 17,200 |  |  |
Operating Loss Carryforwards, Limitation Amount | 15,500 | 15,500 |  |  |
Operating Loss Carryforwards, Total | 17,200 | 17,200 |  |  |
Operating Loss Carryforwards, Subject to Expiration | 15,800 | 15,800 |  |  |
Operating Loss Carryforwards, Not Subject to Expiration | 1,400 | $ 1,400 |  |  |
Open Tax Year |  | 2018 2019 2020 2021 |  |  |
State and Local Jurisdiction [Member] | Department of Revenue Services for the State of Connecticut [Member] |  |  |  |  |
Operating Loss Carryforwards, Total | $ 53,500 | $ 53,500 |  |  |
Operating Loss Carryforwards, Maximum Percentage of Taxable Income Per Year Allowed to be Offset by NOLs |  | 50.00% |  |  |
Open Tax Year |  | 2018 2019 2020 2021 |  |  |
State and Local Jurisdiction [Member] | New York State Division of Taxation and Finance [Member] |  |  |  |  |
Open Tax Year |  | 2018 2019 2020 2021 |  |  |

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