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Note 8 - Capital Stock and Stock-based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2022
Notes Tables |
Schedule Of Stock Options And Restricted Stock Units Activity Roll forward [Table Text Block] |
|  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Stock |  |  | Average |  |  | Time-Based |  |  |  |  |  |  | Performance- |  |  |  |  |
|  | Options |  |  | Exercise |  |  | RSUs |  |  | Grant Date |  |  | Based RSUs |  |  | Grant Date |
|  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Fair Value |  |  | Outstanding |  |  | Fair Value |
Balance at December 31, 2021 |  |  | 1,404,816 |  |  | $ | 3.10 |  |  |  | 1,141,164 |  |  | $ | 3.57 |  |  |  | 860,155 |  |  | $ | 3.13 |
Granted |  |  | - |  |  |  | - |  |  |  | 807,345 |  |  |  | 4.91 |  |  |  | 283,641 |  |  |  | 5.38 |
Exercised |  |  | (40,267 | ) |  |  | 2.64 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Vested (RSUs) |  |  | - |  |  |  | - |  |  |  | (232,157 | ) |  |  | 3.77 |  |  |  | (396,279 | ) |  |  | 2.09 |
Cancelled/Forfeited |  |  | (76,658 | ) |  |  | 2.81 |  |  |  | (145,580 | ) |  |  | 4.64 |  |  |  | (20,284 | ) |  |  | 3.93 |
Balance at September 30, 2022 |  |  | 1,287,891 |  |  | $ | 3.13 |  |  |  | 1,570,772 |  |  | $ | 4.13 |  |  |  | 727,233 |  |  | $ | 4.55 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(in thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Cost of revenues |  | $ | - |  |  | $ | 32 |  |  | $ | 88 |  |  | $ | 83 |
Sales and marketing expenses |  |  | 147 |  |  |  | 149 |  |  |  | 493 |  |  |  | 373 |
General and administrative expenses |  |  | 919 |  |  |  | 790 |  |  |  | 2,633 |  |  |  | 2,593 |
Research and development expenses |  |  | 73 |  |  |  | 33 |  |  |  | 187 |  |  |  | 87 |
Total stock-based compensation expenses |  | $ | 1,139 |  |  | $ | 1,004 |  |  | $ | 3,401 |  |  | $ | 3,136 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(in thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Net loss available to common stockholders |  | $ | (3,405 | ) |  | $ | (170 | ) |  | $ | (7,850 | ) |  | $ | (1,249 | )
Weighted average shares outstanding - basic |  |  | 41,637 |  |  |  | 40,754 |  |  |  | 41,353 |  |  |  | 40,202 |
Dilutive effect of equity awards |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Weighted average shares outstanding - diluted |  |  | 41,637 |  |  |  | 40,754 |  |  |  | 41,353 |  |  |  | 40,202 |
Basic and diluted loss per share |  | $ | (0.08 | ) |  | $ | (0.00 | ) |  | $ | (0.19 | ) |  | $ | (0.03 | )
Shares excluded from diluted loss per share due to their anti-dilutive effect |  |  | 3,594 |  |  |  | 3,908 |  |  |  | 3,676 |  |  |  | 4,438 |
Black Scholes Option Pricing Model [Member] |
Notes Tables |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2022 |
Volatility |  |  | 63.7 | %
Risk-free interest rate |  |  | 1.8 | %
Correlation coefficient1 |  |  | 41.1 | %
Dividend yield |  |  | - | %

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