Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net earnings	$ 20,443	$ 10,800	$ 22,295
Adjustments to reconcile net earnings to net cash provided by operating activities:
Impairment of goodwill and indefinite-lived intangibles	1,223	2,440	0
Depreciation and amortization	14,996	12,507	11,795
Loss from extinguishment of debt	0	30	0
(Gain) loss on disposal of property and equipment	(5)	(130)	34
Reclassification of foreign currency translation adjustment related to disposal of subsidiary	0	0	(827)
Share-based compensation expense	2,244	1,387	1,336
Inventory write-offs for obsolescence	2,288	2,525	2,588
Deferred income taxes	(3,256)	1,153	(2,556)
Other	(2,605)	1,735	358
Net changes in operating assets and liabilities, net of acquisition:
Accounts receivable	(8,038)	(753)	11,369
Inventories	(8,626)	2,986	(619)
Prepaid expenses and other current assets	(56)	67	(5,087)
Trade accounts payable	3,292	59	(2,273)
Other current liabilities	11,637	507	(7,481)
Net cash provided by operating activities	33,537	35,313	30,932
Investing activities
Capital expenditures	(17,061)	(22,949)	(11,196)
Proceeds from sale of property and equipment	231	983	615
Purchase of business	(47,216)	156	(40,481)
Net cash used in investing activities	(64,046)	(21,810)	(51,062)
Financing activities
Principal payments on long-term debt	(18)	(3,493)	(4,618)
Debt issuance costs	0	(402)	0
Proceeds from revolving facility	20,000	0	22,000
Purchase of non-controlling interest	0	(253)	0
Distributions to noncontrolling interests	(313)	(70)	(52)
Payments of employee taxes on certain share-based arrangements	(853)	(813)	(854)
Net cash (used in) provided by financing activities	18,816	(5,031)	16,476
Effect of exchange rate changes on cash and cash equivalents	(2,410)	3,056	405
(Decrease) increase in cash and cash equivalents	(14,103)	11,528	(3,249)
Cash and cash equivalents at beginning of year	98,438	86,910	90,159
Cash and cash equivalents at end of year	84,335	98,438	86,910
Supplemental disclosure of investing transactions:
Capital expenditures purchased	(17,567)	(24,327)	(10,529)
Capital expenditures accrued but not yet paid	$ 3,068	$ 2,561	$ 1,183