CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net income	$ 960	$ 1,158
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	413	489
Other	305	325
Changes in assets and liabilities:
Trade receivables	(2,043)	(717)
Inventories, net	608	(42)
Prepaid expenses and other assets	(357)	(1,150)
Accounts payable	(93)	(395)
Accrued liabilities	(924)	(2,642)
Net cash used in operating activities	(1,131)	(2,974)
Cash Flows From Investing Activities:
Consideration paid for acquisition		(1,350)
Purchase of property and equipment	(298)	(586)
Net cash used in investing activities	(298)	(1,936)
Cash Flows From Financing Activities:
Dividends paid	(210)	(216)
Stock transactions under employee benefit stock plans	403	439
Net cash provided by financing activities	193	223
Effect of foreign exchange rate changes on cash	(72)	113
Net decrease in cash and cash equivalents	(1,308)	(4,574)
Cash and cash equivalents at beginning of period	9,728	9,155
Cash and cash equivalents at end of period	$ 8,420	$ 4,581