CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
OPERATING ACTIVITIES:
Net income	$ 6,520	$ 7,446
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,802	2,782
Gain on disposal of equipment	(2)
Provision for doubtful accounts	135	199
Stock-based compensation		300
Excess tax benefit from stock-based compensation	(148)	(119)
Issuance of non-employee director shares	75	75
Deferred income tax provision	104	1,082
Changes in operating assets and liabilities:
Accounts receivable	(24,424)	(1,982)
Inventories	(8,607)	2,613
Prepaid expenses	(696)	328
Accounts payable	20,521	(7,938)
Accrued liabilities	2,141	(4,594)
Net cash flows from operating activities	(1,579)	192
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(2,072)	(2,036)
Proceeds from sale of property, plant and equipment	3	20
Payments received on notes receivable	71	12
Net cash flows from investing activities	(1,998)	(2,004)
FINANCING ACTIVITIES:
Payments on long-term obligations		(5)
Payments of cash dividends	(4,717)	(4,315)
Proceeds from stock option exercises	509	352
Excess tax benefit from stock-based compensation	148	119
Additions to deferred financing activities		(11)
Net cash flows from financing activities	(4,060)	(3,860)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND TEMPORARY INVESTMENTS	251	(989)
NET CHANGE IN CASH AND TEMPORARY INVESTMENTS	(7,386)	(6,661)
CASH AND TEMPORARY INVESTMENTS, beginning of period	48,591	50,153
CASH AND TEMPORARY INVESTMENTS, end of period	41,205	43,492
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash payments for interest	665	814
Cash payments for income taxes, net of refunds	$ 1,274	$ 3,738