CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES:
Net Income	$ 20,346	$ 16,255	$ 29,830
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	11,762	11,036	9,598
(Gain) Loss on disposal of property, plant and equipment	(53)	(38)	17
Provision for credit losses	174	(137)	195
Issuance of non-employee director shares	200	200	194
Stock-based compensation on nonvested restricted stock units	743
Deferred tax provision	1,061	1,012	752
Changes in operating assets and liabilities:
Accounts receivable	(24,345)	(12,723)	27,375
Inventories	(40,748)	(32,071)	5,466
Prepaid expenses	1,130	(2,603)	1,652
Other assets	24	116	321
Accounts payable	4,485	33,939	(10,881)
Accrued liabilities	5,137	400	(5,194)
Income taxes payable	929	(118)	1,384
Net cash flows from operating activities	(19,155)	15,268	60,709
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(28,939)	(9,150)	(17,500)
Proceeds from sale of property, plant and equipment	8	91	276
Net cash flows from investing activities	(28,931)	(9,059)	(17,224)
FINANCING ACTIVITIES:
Net borrowings under credit facility	45,000		(4,998)
Payments of cash dividends	(8,220)	(8,216)	(8,212)
Net payments on other long-term obligations			(400)
Finance lease obligation payments	(15)	(22)	(21)
Net cash flows from financing activities	36,765	(8,238)	(13,631)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND TEMPORARY INVESTMENTS	(2,858)	(1,160)	1,595
NET CHANGE IN CASH AND TEMPORARY INVESTMENTS	(14,179)	(3,189)	31,449
CASH AND TEMPORARY INVESTMENTS, beginning of period	54,332	57,521	26,072
CASH AND TEMPORARY INVESTMENTS, end of period	40,153	54,332	57,521
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash payments for interest	3,332	1,570	2,052
Cash payments for income taxes, net of refunds	$ 1,806	$ 5,890	$ 6,721