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Note H - Segment Information - Assets by Business Segment (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Jun. 30, 2021
Assets $ 127,358 $ 120,281
Private Label Contract Manufacturing [Member]    
Assets 99,746 95,324
Patent and Trademark Licensing [Member]    
Assets $ 27,612 $ 24,957