Note 11 - Treasury Stock Transactions (Details Textual) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended
	Apr. 24, 2023	May 09, 2023	Apr. 01, 2023	Apr. 02, 2022	Apr. 25, 2023	Nov. 12, 2021	Jan. 13, 2021
Treasury Stock, Shares, Acquired (in shares)			640,578	406,480
Shares Acquired, Average Cost Per Share (in dollars per share)			$ 12.76	$ 6.84
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 2.0
Subsequent Event [Member] | Treasury Stock Repurchase Program, Authorized April 2023 [Member]
Stock Repurchase Program, Authorized Amount					$ 25.0
Treasury Stock, Shares, Acquired (in shares)	333,686	595,910
Shares Acquired, Average Cost Per Share (in dollars per share)	$ 11.91	$ 11.92
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 23.9
Maximum [Member]
Stock Repurchase Program, Authorized Amount						$ 19.1	$ 7.5