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Note 12 - Segment Reporting (Details Textual)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 25, 2021
USD ($)
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Number of Reportable Segments       6  
Payments to Acquire Equity Method Investments       $ (0) $ 25,000
CSS Corp. [Member]          
Payments to Acquire Equity Method Investments $ 25,000        
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member]          
Concentration Risk, Percentage   19.00% 16.00% 18.00% 17.00%