Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Trade accounts receivable, allowances $ 7,939 $ 13,022
Allowance for Doubtful Other Receivables, Current 586 455
Notes receivable, allowance 571 938
Amortizable intangible assets, accumulated amortization $ 59,383 $ 58,110
Treasury stock, shares 2,317,650 2,317,650
Common Class A [Member]    
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 80,000,000 80,000,000
Common stock, issued 23,980,741 23,922,974
Common stock, outstanding 21,663,091 21,605,324
Common Class B [Member]    
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 20,000,000 20,000,000
Common stock, issued 5,553,696 5,553,696
Common stock, outstanding 5,553,696 5,553,696