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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Accounts receivable, allowance for doubtful accounts $ 157 $ 231
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.0005 $ 0.0005
Common stock, shares authorized (in shares) 200,000,000 200,000,000
Common stock, shares issued (in shares) 14,680,246 14,384,936
Common stock, shares outstanding (in shares) 13,911,651 13,616,316
Treasury stock, shares (in shares) 768,595 768,595