Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss, Current	$ 40	$ 75
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	110,000,000	110,000,000
Common stock, shares issued (in shares)	31,072,144	31,002,919
Common stock, shares outstanding (in shares)	23,083,116	24,219,887
Treasury stock, shares (in shares)	7,989,028	6,783,032