Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows From Operating Activities
Net income	$ 60,267	$ 33,538	$ 36,769
Adjustments to reconcile net income to net cash provided by (used for) operating activities
Depreciation and amortization	21,216	20,422	20,530
Amortization of deferred financing costs	441	463	400
Non-cash stock-based compensation expense	7,436	3,196	3,534
(Gain) loss on disposal of fixed assets	(667)	(1,382)	3
Gain on sale of notes receivable	0	0	(11,924)
Deferred taxes	2,072	2,826	8,732
Other	1,520	(1,403)	4,225
Cash flows provided by (used for) working capital
Accounts receivable	(23,625)	(15,273)	(11,589)
Inventories	7,955	(24,885)	(7,868)
Prepaid expenses and other current assets	(1,409)	(676)	(969)
Accounts payable and accrued expenses	(2,585)	28,088	4,664
Net cash provided by (used for) operating activities	72,621	44,914	46,507
Cash Flows From Investing Activities
Capital expenditures	(24,292)	(17,867)	(13,421)
Acquisition of business, net of cash acquired	(27,626)	(35,758)	(63,334)
Proceeds from sale of property, plant and equipment	1,537	3,336	2
Proceeds on sale of notes receivable	0	0	1,200
Net cash provided by (used for) investing activities	(50,381)	(50,289)	(75,553)
Cash Flows From Financing Activities
Borrowings on revolving credit facility	1,264,200	886,600	0
Repayments on revolving credit facility	(1,261,200)	(833,600)	0
Repayments of long-term debt	0	(40,000)	0
Payments on finance lease	(500)	(402)	0
Cash dividends paid	(19,797)	(19,596)	(19,425)
Proceeds from issuance of common stock	2,320	3,793	1,732
Shares withheld for employee taxes on equity awards	(451)	(888)	(623)
Deferred financing fees	(889)	(1,095)	0
Net cash provided by (used for) financing activities	(16,317)	(5,188)	(18,316)
Foreign exchange rate effect on cash	(439)	(83)	136
Net increase (decrease) in cash	5,484	(10,646)	(47,226)
Cash at January 1	17,655	28,301	75,527
Cash at December 31	23,139	17,655	28,301
Supplemental Disclosures of Cash Flow Information
Interest	4,574	4,279	4,505
Income taxes	$ 13,023	$ 10,936	$ 5,355