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Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss $ 15,029 $ 15,142
Preferred stock outstanding 0 0
Preferred stock authorized 7,500,000 7,500,000
Preferred stock par value $ 0.0001 $ 0.0001
Common Class A [Member]    
Common stock issued 25,162,075 25,133,530
Common stock outstanding 24,521,583 24,853,986
Common stock par value $ 0.0001 $ 0.0001
Common stock authorized 80,000,000 80,000,000
Common Class B [Member]    
Common stock issued 5,074,130 5,078,452
Common stock outstanding 5,074,130 5,078,452
Common stock par value $ 0.0001 $ 0.0001
Common stock authorized 20,000,000 20,000,000
Treasury Class-A [Member]    
Treasury Stock, Shares 640,492 279,544