Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Accounts Receivable, Allowance for Credit Loss, Current	$ 52	$ 52
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	30,000,000	30,000,000
Common Stock, Shares, Issued (in shares)	5,539,791	5,454,639
Common Stock, Shares, Outstanding (in shares)	5,406,744	5,373,055
Treasury Stock, Common, Shares (in shares)	133,047	81,584