Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating Activities
Net income	$ 1,215	$ 1,611
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation	1,105	1,091
Amortization	422	451
Bad debt expense (recovery)	152	(6)
Deferred income taxes	613	(89)
Stock based compensation	665	372
Changes in operating assets and liabilities:
Accounts receivable	(11,084)	8,606
Inventories	(202)	(80)
Prepaid expenses, other current assets and other noncurrent assets	2,584	869
Accounts payable	221	(4,017)
Accrued liabilities and other noncurrent liabilities	3,817	(3,508)
Net cash (used in) provided by operating activities	(492)	5,300
Investing Activities
Purchases of property, equipment and patents	(1,326)	(1,726)
Net cash (used in) investing activities	(1,326)	(1,726)
Financing Activities
Payments to repurchase common stock	0	(7,179)
Proceeds from short-term borrowings	799	0
Acquisition of treasury stock	(351)	0
Net cash provided by (used in) financing activities	448	(7,179)
Effect of exchange rate fluctuations on cash	30	101
Net decrease in cash and cash equivalents	(1,340)	(3,504)
Cash and cash equivalents at beginning of period	24,453	28,229
Cash and cash equivalents at end of period	$ 23,113	$ 24,725