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Note 8 - Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2024
Notes Tables |
Schedule of Stockholders Equity [Table Text Block] |
|  | Common |  |  | Common |  |  | Additional |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Stock |  |  | Stock |  |  | Paid-In |  |  | Accumulated |  |  | Treasury |  |  |  |  |
|  | Shares |  |  | Amount |  |  | Capital |  |  | Deficit |  |  | Stock |  |  | Total |
Balance at December 31, 2023 |  |  | 3,867,082 |  |  | $ | 2,320 |  |  | $ | 48,602 |  |  | $ | (24,209 | ) |  | $ | (5,402 | ) |  | $ | 21,311 |
Common stock issued under restricted stock units |  |  | 4,710 |  |  |  | 3 |  |  |  | (3 | ) |  |  | — |  |  |  | — |  |  |  | — |
Share-based compensation expense-stock options |  |  | — |  |  |  | — |  |  |  | 55 |  |  |  | — |  |  |  | — |  |  |  | 55 |
Share-based compensation expense-restricted stock units |  |  | — |  |  |  | — |  |  |  | 121 |  |  |  | — |  |  |  | — |  |  |  | 121 |
Treasury shares |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (651 | ) |  |  | (651 | )
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 681 |  |  |  | — |  |  |  | 681 |
Balance at March 31, 2024 |  |  | 3,871,792 |  |  |  | 2,323 |  |  |  | 48,775 |  |  |  | (23,528 | ) |  |  | (6,053 | ) |  |  | 21,517 |
Common stock issued under restricted stock units |  |  | 6,006 |  |  |  | 4 |  |  |  | (4 | ) |  |  | — |  |  |  | — |  |  |  | — |
Share-based compensation expense-stock options |  |  | — |  |  |  | — |  |  |  | 77 |  |  |  | — |  |  |  | — |  |  |  | 77 |
Share-based compensation expense-restricted stock units |  |  | — |  |  |  | — |  |  |  | 148 |  |  |  | — |  |  |  | — |  |  |  | 148 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,664 |  |  |  | — |  |  |  | 1,664 |
Balance at June 30, 2024 |  |  | 3,877,798 |  |  |  | 2,327 |  |  |  | 48,996 |  |  |  | (21,864 | ) |  |  | (6,053 | ) |  |  | 23,406 |
Common stock issued under restricted stock units |  |  | 21,327 |  |  |  | 12 |  |  |  | (12 | ) |  |  | — |  |  |  | — |  |  |  | — |
Common stock issued - exercised warrants |  |  | 6,018 |  |  |  | 4 |  |  |  | (4 | ) |  |  | — |  |  |  | — |  |  |  | — |
Share-based compensation expense-stock options |  |  | — |  |  |  | — |  |  |  | 78 |  |  |  | — |  |  |  | — |  |  |  | 78 |
Share-based compensation expense-restricted stock units |  |  | — |  |  |  | — |  |  |  | 146 |  |  |  | — |  |  |  | — |  |  |  | 146 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,357 |  |  |  | — |  |  |  | 2,357 |
Balance at September 30, 2024 |  |  | 3,905,143 |  |  | $ | 2,343 |  |  | $ | 49,204 |  |  | $ | (19,507 | ) |  | $ | (6,053 | ) |  | $ | 25,987 |
|  | Common |  |  | Common |  |  | Additional |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Stock |  |  | Stock |  |  | Paid-In |  |  | Accumulated |  |  | Treasury |  |  |  |  |
|  | Shares |  |  | Amount |  |  | Capital |  |  | Deficit |  |  | Stock |  |  | Total |
Balance at December 31, 2022 |  |  | 3,686,939 |  |  | $ | 2,212 |  |  | $ | 45,304 |  |  | $ | (21,979 | ) |  | $ | (5,402 | ) |  | $ | 20,135 |
Common stock issued |  |  | 858 |  |  |  | 1 |  |  |  | 14 |  |  |  | — |  |  |  | — |  |  |  | 15 |
Common stock issued under restricted stock units |  |  | 1,920 |  |  |  | 1 |  |  |  | (1 | ) |  |  | — |  |  |  | — |  |  |  | — |
Share-based compensation expense-stock options |  |  | — |  |  |  | — |  |  |  | 58 |  |  |  | — |  |  |  | — |  |  |  | 58 |
Share-based compensation expense-restricted stock units |  |  | — |  |  |  | — |  |  |  | 69 |  |  |  | — |  |  |  | — |  |  |  | 69 |
Net loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1,270 | ) |  |  | — |  |  |  | (1,270 | )
Balance at March 31, 2023 |  |  | 3,689,717 |  |  |  | 2,214 |  |  |  | 45,444 |  |  |  | (23,249 | ) |  |  | (5,402 | ) |  |  | 19,007 |
Common stock issued |  |  | 2,661 |  |  |  | 2 |  |  |  | 33 |  |  |  | — |  |  |  | — |  |  |  | 35 |
Common stock issued under restricted stock units |  |  | 1,920 |  |  |  | 1 |  |  |  | (1 | ) |  |  | — |  |  |  | — |  |  |  | — |
Share-based compensation expense-stock options |  |  | — |  |  |  | — |  |  |  | 61 |  |  |  | — |  |  |  | — |  |  |  | 61 |
Share-based compensation expense-restricted stock units |  |  | — |  |  |  | — |  |  |  | 63 |  |  |  | — |  |  |  | — |  |  |  | 63 |
Net loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1,340 | ) |  |  | — |  |  |  | (1,340 | )
Balance at June 30, 2023 |  |  | 3,694,298 |  |  |  | 2,217 |  |  |  | 45,600 |  |  |  | (24,589 | ) |  |  | (5,402 | ) |  |  | 17,826 |
Common stock issued |  |  | 1,254 |  |  |  | 1 |  |  |  | 12 |  |  |  | — |  |  |  | — |  |  |  | 13 |
Common stock issued under restricted stock units |  |  | 27,418 |  |  |  | 16 |  |  |  | (16 | ) |  |  | — |  |  |  | — |  |  |  | — |
Share-based compensation expense-stock options |  |  | — |  |  |  | — |  |  |  | 44 |  |  |  | — |  |  |  | — |  |  |  | 44 |
Share-based compensation expense-restricted stock units |  |  | — |  |  |  | — |  |  |  | 641 |  |  |  | — |  |  |  | — |  |  |  | 641 |
Net loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 90 |  |  |  | — |  |  |  | 90 |
Balance at September 30, 2023 |  |  | 3,722,970 |  |  | $ | 2,234 |  |  | $ | 46,281 |  |  | $ | (24,499 | ) |  | $ | (5,402 | ) |  | $ | 18,614 |

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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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