CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
OPERATING ACTIVITIES:
Net income	$ 9,694	$ 11,257
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	5,334	4,590
(Gain) Loss on disposal of property, plant and equipment	(1)	5
Provision for doubtful accounts	71	97
Issuance of non-employee director shares	200	194
Deferred tax provision	113	(51)
Changes in operating assets and liabilities:
Accounts receivable	(19,784)	45,165
Inventories	(7,314)	(3,221)
Prepaid expenses	(4,270)	(925)
Other assets	104	242
Accounts payable	22,115	(36,062)
Accrued liabilities	(1,043)	1,744
Net cash flows from operating activities	5,219	23,035
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(5,418)	(7,545)
Proceeds from sale of property, plant and equipment	4	42
Net cash flows from investing activities	(5,414)	(7,503)
FINANCING ACTIVITIES:
Payments of cash dividends	(4,108)	(4,106)
Net payments on other long-term obligations		(184)
Finance lease obligation payments	(11)	(10)
Net cash flows from financing activities	(4,119)	(4,300)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND TEMPORARY INVESTMENTS	727	(188)
NET CHANGE IN CASH AND TEMPORARY INVESTMENTS	(3,587)	11,044
CASH AND TEMPORARY INVESTMENTS, beginning of period	57,521	26,072
CASH AND TEMPORARY INVESTMENTS, end of period	53,934	37,116
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash payments for interest	663	1,203
Cash payments for income taxes, net of refunds	$ 3,585	$ 1,710