CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
OPERATING ACTIVITIES:
Consolidated net income	$ 1,207	$ 2,010
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	898	914
Loss on disposal of equipment	4
Provision for doubtful accounts	47	61
Stock-based compensation		100
Excess tax benefit from stock-based compensation	(127)	(119)
Issuance of non-employee director shares	75	75
Deferred income tax provision	3	(27)
Changes in operating assets and liabilities:
Accounts receivable	(4,889)	(13,529)
Inventories	(5,099)	(3,978)
Prepaid expenses	(1,407)	(1,125)
Accounts payable	9,098	6,297
Accrued liabilities	862	(1,970)
Net cash flows from operating activities	672	(11,291)
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(815)	(691)
Proceeds from sale of property, plant and equipment		1
Payments received on notes receivable	10	4
Net cash flows from investing activities	(805)	(686)
FINANCING ACTIVITIES:
Payments on long-term obligations		(4)
Payments of cash dividends	(1,569)	(1,437)
Proceeds from stock option exercises	405	297
Excess tax benefit from stock-based compensation	127	119
Net cash flows from financing activities	(1,037)	(1,025)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND TEMPORARY INVESTMENTS	6	436
NET CHANGE IN CASH AND TEMPORARY INVESTMENTS	(1,164)	(12,566)
CASH AND TEMPORARY INVESTMENTS, beginning of period	48,591	50,153
CASH AND TEMPORARY INVESTMENTS, end of period	47,427	37,587
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash payments for interest	207	266
Cash payments for income taxes, net of refunds	$ (411)	$ 934