CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (33,804)	$ (6,082)	$ (52,966)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	45,639	45,745	46,970
Stock based compensation for equity classified awards	4,314	3,067	3,440
Amortization of deferred financing cost	2,124	2,285	2,875
Provision for bad debts	467	215	(237)
Interest income on interest rate swap	0	0	(2,258)
Deferred income taxes	(9,320)	(1,527)	29,251
Goodwill impairment	0	6,380	0
(Loss) gain on sales of property	(53)	56	162
Changes in operating assets and liabilities:
Accounts receivable	4,416	3,529	4,989
Inventories	(7,031)	3,286	(1,745)
Prepaid expenses and other current assets	(3,328)	(5,252)	(6,173)
Accounts payable	4,982	(1,368)	4,168
Accrued expenses and other liabilities	6,487	2,887	878
Income taxes payable	2,655	(1,549)	(1,242)
Other assets and liabilities	(1,376)	330	(1,397)
Net cash provided by operating activities	16,172	52,002	26,715
Cash flows from investing activities:
Cash paid for property and equipment	(4,035)	(4,023)	(2,395)
Net cash used in investing activities	(4,035)	(4,023)	(2,395)
Cash flows from financing activities:
Net proceeds from issuance of convertible preferred stock	0	0	145,490
Payment of issuance costs for convertible preferred stock	0	0	(7,006)
Payment of dividends	(10,621)	(13,933)	(5,244)
Proceeds from long term debt	0	0	2,042
Payment of deferred financing costs	0	0	(8,034)
Payment for redemption of convertible preferred stock	0	(5,330)	0
Repayment of long term debt	(3,303)	(12,390)	(132,423)
Proceeds from issuance of stock under employee stock purchase plan	300	268	316
Net cash used in financing activities	(13,624)	(31,385)	(4,859)
Effect of exchange rate changes on cash and cash equivalents	(6,088)	(4,694)	752
Net (decrease) increase in cash and cash equivalents	(7,575)	11,900	20,213
Cash and cash equivalents, beginning of period	61,930	50,030	29,817
Cash and cash equivalents, end of period	54,355	61,930	50,030
Cash paid for:
Interest	21,836	19,729	23,792
Income taxes	3,632	5,967	2,722
Supplemental schedule of non-cash investing and financing activities:
Accrued purchases of property and equipment	$ 198	$ 103	$ 141