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Note 16 - Stockholders' Equity (Tables) | 9 Months Ended
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Jun. 30, 2023
Notes Tables |
Schedule of Stockholders Equity [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
|  | Common Stock |  |  | Additional |  |  |  |  |  |  | Other |  |  | Total |
|  | Shares |  |  | Par Value Amount |  |  | Paid-in Capital |  |  | Accumulated Deficit |  |  | Comprehensive Loss |  |  | Stockholders' Equity |
Balance as of September 30, 2022 |  |  | 36,611,240 |  |  | $ | 366 |  |  | $ | 108,551 |  |  | $ | (57,366 | ) |  | $ | (792 | ) |  | $ | 50,393 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  |  | 420 |  |  |  | - |  |  |  | - |  |  |  | 420 |
Issuance of common stock upon exercise of stock options, net |  |  | 20,000 |  |  |  | - |  |  |  | 32 |  |  |  | - |  |  |  | - |  |  |  | 32 |
Issuance of common stock upon vesting of restricted stock units |  |  | 12,667 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Release of obligation to issue commons stock |  |  | 69,564 |  |  |  | 1 |  |  |  | - |  |  |  | - |  |  |  |  |  |  |  | - |
Accumulated other comprehensive income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 266 |  |  |  | 266 |
Net loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (3,507 | ) |  |  |  |  |  |  | (3,507 | )
Balance as of December 31, 2022 |  |  | 36,713,471 |  |  |  | 367 |  |  | $ | 109,003 |  |  | $ | (60,873 | ) |  | $ | (526 | ) |  | $ | 47,604 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  |  | 513 |  |  |  | - |  |  |  | - |  |  |  | 513 |
Issuance of common stock upon exercise of stock options, net |  |  | 33,765 |  |  |  | 1 |  |  |  | 54 |  |  |  | - |  |  |  | - |  |  |  | 54 |
Issuance of common stock upon cashless exercise of stock options, net |  |  | 15,914 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Issuance of common stock upon vesting of restricted stock units |  |  | 232,761 |  |  |  | 2 |  |  |  | (2 | ) |  |  | - |  |  |  | - |  |  |  | (2 | )
Shares retained for payment of taxes in connection with net share settlement of restricted stock units |  |  | (11,616 | ) |  |  | - |  |  |  | (45 | ) |  |  | - |  |  |  | - |  |  |  | (45 | )
Accumulated other comprehensive income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 81 |  |  |  | 81 |
Net loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (3,403 | ) |  |  | - |  |  |  | (3,403 | )
Balance as of March 31, 2023 |  |  | 36,984,295 |  |  | $ | 370 |  |  | $ | 109,523 |  |  | $ | (64,276 | ) |  | $ | (445 | ) |  | $ | 44,802 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  |  | 396 |  |  |  | - |  |  |  | - |  |  |  | 396 |
Issuance of common stock upon exercise of stock options, net |  |  | 1,000 |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | - |  |  |  | 1 |
Issuance of common stock upon cashless exercise of stock options, net |  |  | 372,286 |  |  |  | 4 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Issuance of common stock upon vesting of restricted stock units |  |  | 7,584 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Retirement of common stock |  |  | (109,488 | ) |  |  | (1 | ) |  |  | 300 |  |  |  | (300 | ) |  |  |  |  |  |  | - |
Shares retained for payment of taxes in connection with net share settlement upon exercise of stock options |  |  | (74,606 | ) |  |  | (1 | ) |  |  | (207 | ) |  |  | - |  |  |  | - |  |  |  | (207 | )
Accumulated other comprehensive income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 21 |  |  |  | 21 |
Net loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (1,423 | ) |  |  | - |  |  |  | (1,423 | )
Balance as of June 30, 2023 |  |  | 37,181,071 |  |  | $ | 372 |  |  | $ | 110,013 |  |  | $ | (65,999 | ) |  | $ | (424 | ) |  | $ | 43,590 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
|  | Common Stock |  |  | Additional |  |  |  |  |  |  | Other |  |  | Total |
|  | Shares |  |  | Par Value Amount |  |  | Paid-in Capital |  |  | Accumulated Deficit |  |  | Comprehensive Loss |  |  | Stockholders' Equity |
Balance as of September 30, 2021 |  |  | 36,403,833 |  |  | $ | 364 |  |  | $ | 107,110 |  |  | $ | (41,154 | ) |  | $ | 2 |  |  | $ | 65,958 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  |  | 558 |  |  |  | - |  |  |  | - |  |  |  | 558 |
Issuance of common stock upon exercise of stock options, net |  |  | 15,000 |  |  |  | - |  |  |  | 46 |  |  |  | - |  |  |  | - |  |  |  | 46 |
Stock buyback |  |  | (116,868 | ) |  |  | (1 | ) |  |  | (441 | ) |  |  | - |  |  |  | - |  |  |  | (441 | )
Release of obligation to issue commons stock |  |  | 69,564 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Accumulated other comprehensive loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (85 | ) |  |  | (85 | )
Net loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (1,305 | ) |  |  | - |  |  |  | (1,305 | )
Balance as of December 31, 2021 |  |  | 36,371,529 |  |  |  | 363 |  |  | $ | 107,273 |  |  | $ | (42,459 | ) |  | $ | (83 | ) |  | $ | 64,731 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  |  | 737 |  |  |  | - |  |  |  | - |  |  |  | 737 |
Issuance of common stock upon exercise of stock options, net |  |  | 55,000 |  |  |  | 1 |  |  |  | 124 |  |  |  | - |  |  |  | - |  |  |  | 124 |
Issuance of common stock upon vesting of restricted stock units |  |  | 262,342 |  |  |  | 2 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Shares retained for payment of taxes in connection with net share settlement of restricted stock units |  |  | (18,344 | ) |  |  | - |  |  |  | (70 | ) |  |  | - |  |  |  | - |  |  |  | (70 | )
Stock buyback |  |  | (142,442 | ) |  |  | (1 | ) |  |  | (557 | ) |  |  | - |  |  |  | - |  |  |  | (557 | )
Accumulated other comprehensive loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (1 | ) |  |  | (1 | )
Net loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (492 | ) |  |  | - |  |  |  | (492 | )
Balance as of March 31, 2022 |  |  | 36,528,085 |  |  |  | 365 |  |  | $ | 107,507 |  |  | $ | (42,951 | ) |  | $ | (84 | ) |  | $ | 64,472 |
Share-based compensation expense |  |  | - |  |  |  | - |  |  | $ | 355 |  |  |  | - |  |  |  | - |  |  |  | 355 |
Issuance of common stock upon exercise of stock options, net |  |  | 60,000 |  |  |  | 1 |  |  |  | 83 |  |  |  | - |  |  |  | - |  |  |  | 83 |
Issuance of common stock upon vesting of restricted stock units |  |  | 7,920 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Accumulated other comprehensive loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (452 | ) |  |  | (452 | )
Net loss |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (589 | ) |  |  | - |  |  |  | (589 | )
Balance as of June 30, 2022 |  |  | 36,596,005 |  |  | $ | 366 |  |  | $ | 107,945 |  |  | $ | (43,540 | ) |  | $ | (536 | ) |  | $ | 63,869 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 + Details
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