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Note 12 - Net Income (Loss) Per-share - Reconciliation of Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Net income (loss) $ (73) $ (1,297)
Weighted-average shares of common stock outstanding (in shares) 20,061 18,363
Basic net income (loss) per share (in dollars per share) $ (0.00) $ (0.07)
Net loss for the year $ (73) $ (1,297)
Net Income (Loss) Attributable to Parent, Diluted, Total $ (73) $ (1,297)
Dilutive options and warrants outstanding (in shares) 0 0
Number of shares used in diluted per-share computation (in shares) 20,061 18,363
Diluted net income (loss) per share (in dollars per share) $ 0 $ (0.07)