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Note 9 - Stock Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Nonvested Restricted Stock Shares Activity [Table Text Block] |
Total authorized RSUs in Plan approved by shareholders |  |  | 4,850,000 |
Stock issued out of the Plan from vested grants |  |  | (3,265,829 | )
Non-vested grants |  |  | (183,000 | )
RSUs available for future issuance |  |  | 1,401,171 |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
Non-vested grants at December 31, 2019 |  |  | 488,500 |
Granted – weighted average share price on grant date was $.90 |  |  | 40,000 |
Vested – weighted average share price on vesting date was $.92 |  |  | (193,250 | )
Forfeited |  |  | (11,000 | )
Non-vested grants at December 31, 2020 |  |  | 324,250 |
Granted – weighted average share price on grant date was $2.46. |  |  | 173,000 |
Vested – weighted average share price on vesting date was $2.27. |  |  | (296,250 | )
Forfeited |  |  | (18,000 | )
Non-vested grants at December 31, 2021 |  |  | 183,000 |
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
Vesting Year |  | RSUs Vesting |
2023 |  |  | 183,000 |

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