Note 5 - Right-of-use Assets - Schedule of Right-of-use Assets (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | |
|---|---|---|---|
Sep. 30, 2021 |
Dec. 30, 2020 |
Dec. 31, 2020 |
|
| Right-of-use assets, beginning of period | $ 1,848 | $ 1,837 | |
| Additions to right-of-use assets | 7 | 11 | |
| Right-of-use assets, end of period | 1,855 | 1,848 | |
| Accumulated amortization | (1,276) | (923) | |
| Right-of use assets, NBV | $ 579 | $ 925 | $ 925 |
| 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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