Note 5 - Right-of-use Assets - Schedule of Right-of-use Assets (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
|
| Right-of-use assets, balance | $ 1,860 | $ 1,848 |
| Additions to right-of-use assets | 91 | 12 |
| Right-of-use assets, balance | 1,951 | 1,860 |
| Accumulated amortization | (1,509) | (1,395) |
| Right-of use assets, NBV | $ 442 | $ 465 |
| X | ||||||||||
- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of right-of-use assets over their estimated remaining economic lives. No definition available.
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease before amortization, depreciation, and depletion. No definition available.
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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