SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for doubtful accounts
Valuation and qualifying accounts
Balance at Beginning of Year	$ 2,110	$ 1,935	$ 1,364
Charged to Costs and Expenses	392	(98)	977
Valuation Allowances and Reserves, Charged to Other Accounts	570	(273)	406
Deductions	0	0	0
Balance at End of Year	1,932	2,110	1,935
Sales Returns and Allowances [Member]
Valuation and qualifying accounts
Balance at Beginning of Year	4,566	4,748	3,317
Charged to Costs and Expenses	2,659	(182)	1,431
Valuation Allowances and Reserves, Charged to Other Accounts	0	0	0
Deductions	0	0	0
Balance at End of Year	7,225	4,566	4,748
Allowance for deferred tax assets
Valuation and qualifying accounts
Balance at Beginning of Year	11,316	11,617	13,254
Charged to Costs and Expenses	1,763	1,166	1,423
Valuation Allowances and Reserves, Charged to Other Accounts	0	0	0
Deductions	1,088	1,467	3,060
Balance at End of Year	$ 11,991	$ 11,316	$ 11,617