Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Allowance for credit losses	$ 106	$ 106
Accumulated depreciation	18,947	18,958
Accumulated amortization	$ 534	$ 525
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)	31,852,657	31,767,329
Common stock, shares outstanding (in shares)	30,769,258	30,708,273