Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Allowance for credit losses	$ 106	$ 111
Accumulated depreciation	18,926	18,703
Accumulated amortization	$ 510	$ 468
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	31,767,329	31,361,303
Common stock, shares outstanding (in shares)	30,708,273	30,385,297