Note 7 - STOCKHOLDERS EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	6 Months Ended	24 Months Ended
	Jul. 30, 2020	Jun. 04, 2020	Mar. 31, 2021	Jun. 30, 2021	May 28, 2020
Treasury Stock, Value, Acquired, Cost Method			$ 4,523
The 2018 Stock Repurchase Program [Member]
Treasury Stock, Shares, Acquired (in shares)					786,000
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)					$ 12.43
Treasury Stock, Value, Acquired, Cost Method					$ 9,800
The 2020 Stock Repurchase Program [Member]
Treasury Stock, Shares, Acquired (in shares)				251,212
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)				$ 18.01
Treasury Stock, Value, Acquired, Cost Method				$ 4,500
Stock Repurchase Program, Authorized Amount		$ 25,000
Stock Repurchase Program, Period in Force (Year)		2 years
Strategic Partnership for Joint Development and Sales Technology Solutions [Member]
Stock Issued During Period, Shares, New Issues (in shares)	3,306,924
Shares Issued, Price Per Share (in dollars per share)	$ 19.7085
Proceeds from Issuance of Common Stock	$ 65,200
Payments of Stock Issuance Costs	$ 100