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Note N - Sale of Direct Mail Assets and Equipment (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 8 Months Ended 12 Months Ended
Apr. 24, 2020
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2020
Proceeds from Sale of Property, Plant, and Equipment, Total   $ 196    
Summit [Member]          
Proceeds from Sale of Machinery and Equipment $ 1,500        
Proceeds from Sale of Property, Plant, and Equipment, Total       $ 500  
Impairment of Long-Lived Assets to be Disposed of         $ 1,900
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property         $ 1,400