Note 10 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				12 Months Ended
	Jan. 22, 2026	Oct. 18, 2022	Oct. 17, 2022	Dec. 31, 2025	Dec. 31, 2024	Dec. 28, 2021	Dec. 27, 2021	Aug. 29, 2011
Common Stock, Shares Authorized (in shares)				30,000,000	30,000,000	30,000,000	10,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)				$ 0.01	$ 0.01
Proceeds from Warrant Exercises				$ 225	$ 0
Warrant Proceeds Receivable				$ 3,650	$ 0
Share Repurchase Program, Authorized, Number of Shares (in shares)				797,491				347,491
Share Repurchase Program, Remaining Authorized, Number of Shares (in shares)				540,000
Treasury Stock, Shares, Acquired (in shares)				0	0
Treasury Stock, Common, Shares (in shares)				133,047	81,584
Treasury Stock, Common, Value				$ 946	$ 580
European Style Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)		5,258,320		0
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)			0.2
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 4.75	$ 12.5
Warrants, Target Trigger Price for Potential Acceleration of Exercise Date (in dollars per share)		$ 6.65	$ 17.5
Class Of Warrant Or Right, Exercised In Period (in shares)				4,186,010
Class Of Warrant Or Right, Percent, Exercised In Period				79.60%
Stock Issued During Period, Shares, Issued for Settlement of Warrants (in shares)				837,202
Class of Warrant or Right, Expired During Period (in shares)				1,072,310
Proceeds from Warrant Exercises				$ 5,000
Warrant Proceeds Receivable				$ 3,600
European Style Warrants [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, Issued for Over-Subscription Privilege (in shares)	214,462