CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
OPERATING ACTIVITIES:
Net income	$ 8,930	$ 5,687
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	2,031	1,873
Loss on deconsolidation of subsidiary		83
Provision for doubtful accounts	101	95
Excess tax benefit from stock-based compensation	(101)	(22)
Issuance of non-employee director shares	96	96
Deferred income tax provision	(18)	(124)
Changes in operating assets and liabilities:
Accounts receivable	(15,901)	(15,356)
Inventories	(2,067)	(744)
Prepaid expenses	(1,628)	(1,770)
Other assets	(299)
Accounts payable	11,939	10,438
Accrued liabilities	1,348	1,023
Net cash flows from operating activities	4,431	1,279
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(3,072)	(2,012)
Payments received on notes receivable	1	19
Net cash flows from investing activities	(3,071)	(1,993)
FINANCING ACTIVITIES:
Payments of cash dividends	(3,624)	(3,387)
Proceeds from stock option exercises	181	180
Excess tax benefit from stock-based compensation	101	22
Net cash flows from financing activities	(3,342)	(3,185)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND TEMPORARY INVESTMENTS	(1,644)	87
NET CHANGE IN CASH AND TEMPORARY INVESTMENTS	(3,626)	(3,812)
CASH AND TEMPORARY INVESTMENTS, beginning of period	39,597	42,864
CASH AND TEMPORARY INVESTMENTS, end of period	35,971	39,052
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash payments for interest	661	485
Cash payments for income taxes, net of refunds	$ 3,352	$ 3,090