CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
OPERATING ACTIVITIES:
Net income	$ 3,178	$ 5,431
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	2,440	2,253
Loss on disposal of property, plant and equipment	5	7
Provision for doubtful accounts	51	50
Issuance of non-employee director shares	200	194
Deferred tax provision	(3)	(30)
Changes in operating assets and liabilities:
Accounts receivable	(25,812)	(342)
Inventories	(568)	(4,724)
Prepaid expenses	(3,377)	(2,925)
Other assets	37	227
Accounts payable	27,557	1,486
Accrued liabilities	(861)	(3,479)
Net cash flows from operating activities	2,847	(1,852)
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(2,489)	(3,526)
Proceeds from sale of property, plant and equipment		10
Net cash flows from investing activities	(2,489)	(3,516)
FINANCING ACTIVITIES:
Net proceeds under credit facility		25,000
Payments of cash dividends	(2,054)	(2,053)
Net payments on other long-term obligations		(92)
Finance lease obligation payments	(5)	(5)
Net cash flows from financing activities	(2,059)	22,850
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND TEMPORARY INVESTMENTS	379	(460)
NET CHANGE IN CASH AND TEMPORARY INVESTMENTS	(1,322)	17,022
CASH AND TEMPORARY INVESTMENTS, beginning of period	57,521	26,072
CASH AND TEMPORARY INVESTMENTS, end of period	56,199	43,094
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash payments for interest	280	594
Cash payments for income taxes, net of refunds	$ 604	$ 739