CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash Flows From Operating Activities:
Net income	$ 2,976	$ 2,148
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,807	1,688
Deferred income taxes	50	537
Stock compensation expense	433	379
Other	(190)	1,467
Changes in operating assets and liabilities:
Trade receivables	(3,395)	(6,446)
Inventories, net	(728)	(57)
Prepaid expenses and other assets	(50)	101
Accounts payable	1,891	1,431
Accrued liabilities	(2,117)	(1,480)
Net cash provided by (used in) operating activities	677	(232)
Cash Flows From Investing Activities:
Proceeds related to working capital adjustment on acquisition		1,434
Purchase of property and equipment	(1,436)	(584)
Net cash provided by (used in) investing activities	(1,436)	850
Cash Flows From Financing Activities:
Borrowings on lines-of-credit, net	315	164
Principal payments of long-term debt	(1,500)	(1,250)
Dividends paid to stockholders	(233)	(231)
Stock transactions under employee benefit stock plans	1,171	304
Net cash used in financing activities	(247)	(1,013)
Effect of foreign exchange rate changes on cash	(1,064)	(58)
Net decrease in cash and cash equivalents	(2,070)	(453)
Cash and cash equivalents at beginning of period	13,113	10,171
Cash and cash equivalents at end of period	$ 11,043	$ 9,718