Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating Activities
Net income	$ 18,059	$ 16,376
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,076	7,398
Amortization of debt issuance costs	11	10
Amortization of right of use assets	67	0
Provision for (recovery of) credit losses on accounts receivable, net of adjustments	288	(13)
Provision for (recovery of) excess and obsolete inventories	220	(194)
Share-based compensation	3,112	2,761
Gain on disposal of assets	(2)	0
Foreign currency transaction gain	(9)	(8)
Interest income on note receivable	(6)	(6)
Deferred	973	4,658
Changes in assets and liabilities:
Accounts receivable	(43,244)	(5,179)
Income tax receivable	3,631	(2,766)
Inventories	(16,041)	(1,627)
Contract assets	(4,252)	0
Prepaid expenses and other	(3,588)	108
Accounts payable	6,325	4,904
Contract liabilities	17,998	0
Deferred revenue	68	2,358
Accrued liabilities	2,511	58
Net cash (used in) provided by operating activities	(6,803)	28,838
Investing Activities
Capital expenditures	(14,031)	(16,404)
Cash paid in business combination, net of cash acquired	(249)	0
Proceeds from sale of property, plant and equipment	2	0
Principal payments from note receivable	14	14
Net cash used in investing activities	(14,264)	(16,390)
Financing Activities
Borrowings under revolving credit facility	25,000	0
Stock options exercised	2,890	9,438
Repurchase of stock	(3,278)	(5,185)
Employee taxes paid by withholding shares	(804)	(1,217)
Net cash provided by financing activities	23,808	3,036
Net increase in cash, cash equivalents and restricted cash	2,741	15,484
Cash, cash equivalents and restricted cash, beginning of period	3,487	82,288
Cash, cash equivalents and restricted cash, end of period	$ 6,228	$ 97,772