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Note 2 - Revenue Recognition (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Revenues $ 70,187 $ 79,312
Reorder Customer [Member]    
Revenues 63,339 68,700
Reorder Customer [Member] | Previously Reported [Member]    
Revenues   70,937
New Order Customer [Member]    
Revenues $ 6,848 10,600
New Order Customer [Member] | Previously Reported [Member]    
Revenues   $ 8,375