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Note 21 - Fair Value of Financial Instruments (Details Textual)
$ in Thousands
9 Months Ended
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Private Company Investments [Member]      
Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings $ 100 $ 0  
Ravix [Member]      
Business Combination, Contingent Consideration, Liability 4,500    
Ravix [Member] | Estimate of Fair Value Measurement [Member]      
Business Combination, Contingent Consideration, Liability 3,300   $ 3,200
CSuite Acquisition, LLC [Member]      
Business Combination, Contingent Consideration, Liability 0   0
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High 3,600    
CSuite Acquisition, LLC [Member] | Estimate of Fair Value Measurement [Member]      
Business Combination, Contingent Consideration, Liability $ 0   $ 0
Trust Preferred Debt Repurchase Options Contracts [Member]      
Derivative, Number of Instruments Held, Total   3