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Note 10 - Capital Stock and Stock-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Schedule Of Stock Options And Restricted Stock Units Activity Roll forward [Table Text Block] |
|  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Stock |  |  | Average |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Options |  |  | Exercise |  |  | RSUs |  |  | Grant Date |  |  | PRSUs |  |  | Grant Date |
|  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Fair Value |  |  | Outstanding |  |  | Fair Value |
Balance at December 31, 2022 |  |  | 1,238,776 |  |  | $ | 3.15 |  |  |  | 1,093,801 |  |  | $ | 3.94 |  |  |  | 646,235 |  |  | $ | 4.51 |
Granted |  |  | - |  |  |  | - |  |  |  | 1,177,391 |  |  |  | 2.51 |  |  |  | 558,958 |  |  |  | 2.61 |
Exercised |  |  | (39,618 | ) |  |  | 2.63 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Vested (RSUs) |  |  | - |  |  |  | - |  |  |  | (125,036 | ) |  |  | 1.93 |  |  |  | - |  |  |  | - |
Cancelled/Forfeited |  |  | (29,201 | ) |  |  | 2.99 |  |  |  | (3,122 | ) |  |  | 5.54 |  |  |  | - |  |  |  | - |
Balance at March 31, 2023 |  |  | 1,169,957 |  |  | $ | 3.17 |  |  |  | 2,143,034 |  |  | $ | 3.27 |  |  |  | 1,205,193 |  |  | $ | 3.63 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended March 31, |
(in thousands) |  | 2023 |  |  | 2022 |
Cost of revenues |  | $ | 69 |  |  | $ | 36 |
Sales and marketing expenses |  |  | 145 |  |  |  | 154 |
General and administrative expenses |  |  | 869 |  |  |  | 791 |
Research and development expenses |  |  | 70 |  |  |  | 42 |
Total stock-based compensation expenses |  | $ | 1,153 |  |  | $ | 1,023 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended March 31, |
(in thousands) |  | 2023 |  |  | 2022 |
Weighted average shares outstanding - basic |  |  | 42,119 |  |  |  | 41,219 |
Dilutive effect of equity awards |  |  | 664 |  |  |  | - |
Weighted average shares outstanding - diluted |  |  | 42,783 |  |  |  | 41,219 |
Shares excluded from diluted loss per share due to their anti-dilutive effect |  |  | 1,167 |  |  |  | 3,505 |
Black Scholes Option Pricing Model [Member] |
Notes Tables |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2023 |
Volatility |  |  | 56.8 | %
Risk-free interest rate |  |  | 4.6 | %
Correlation coefficient |  |  | 41.7 | %
Dividend yield |  |  | - | %

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