Consolidated Condensed Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands, $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Receivables, allowance	$ 957	$ 694	$ 669
Preferred Stock, Shares Authorized (in shares)	1,000,000	1,000,000	1,000,000
Preferred Stock, No Par Value (in dollars per share)	$ 0	$ 0	$ 0
Preferred Stock, Shares Issued (in shares)	0	0	0
Common stock, shares authorized (in shares)	30,000,000	30,000,000	30,000,000
Common Stock, No Par Value (in dollars per share)	$ 0	$ 0	$ 0
Common Stock, Shares, Outstanding (in shares)	13,803,745	13,732,719	13,877,302
Common Stock, Shares, Issued (in shares)	13,803,745	13,732,719	13,877,302