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Note 6 - Restructuring and Other Exit Costs - Restructuring and Other Exit Charges (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Balance $ 0 $ 288
Restructuring and other exit costs 2,394 1,275
Non-cash charges (1,471) (46)
Cash payments (287) (1,517)
Balance 636 0
Cost of Revenues [Member]    
Balance 0 0
Restructuring and other exit costs 1,471 0
Non-cash charges (1,471) 0
Cash payments 0 0
Balance 0 0
Employee Severance [Member]    
Balance 0 270
Restructuring and other exit costs 877 1,174
Non-cash charges 0 0
Cash payments (241) (1,444)
Balance 636 0
Other Restructuring [Member]    
Balance 0 18
Restructuring and other exit costs 46 101
Non-cash charges 0 (46)
Cash payments (46) (73)
Balance $ 0 $ 0