Note 11 - Notes Payable (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Mar. 31, 2022 |
|
| Notes Payable, Total | $ 0 | |
| Paycheck Protection Program, CARES Act [Member] | ||
| Debt Instrument, Decrease, Forgiveness | $ 332,000 |
| X | ||||||||||
- Definition Decrease for amounts of indebtedness forgiven by the holder of the debt instrument. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
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