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 (loss) income	$ (43)us-gaap_ProfitLoss	$ 2,005us-gaap_ProfitLoss
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization of fixed and intangible assets	3,954	3,733
Amortization of other long term assets	1,430	1,454
Amortization of discounted liabilities	49	69
Stock-based compensation	1,427	768
Tax benefit from exercise of stock options	(1)	(235)
Operating loss from equity method investment	0	328
Gain from dilution of equity method investment		(256)
Changes in assets and liabilities associated with operations:
Decrease (increase) in net receivables	3,611us-gaap_IncreaseDecreaseInReceivables	(30,940)us-gaap_IncreaseDecreaseInReceivables
Increase in inventories	(1,350)us-gaap_IncreaseDecreaseInInventories	(18,629)us-gaap_IncreaseDecreaseInInventories
Increase in prepaid expenses and other assets	(1,301)	(3,242)
(Increase) decrease in income tax receivable/payable, net	(378)	695
Increase (decrease) increase in accounts payable	3,570	(381)
Increase (decrease) in deferred revenue	3,660	(2,309)
Increase in other payables and accrued expenses	5,214	5,050
Net cash provided by (used in) operating activities	19,842	(41,890)
Cash flows from investing activities:
Capital expenditures	(1,522)us-gaap_PaymentsForCapitalImprovements	(1,816)us-gaap_PaymentsForCapitalImprovements
Net cash used in investing activities	(1,522)	(1,816)
Cash flows from financing activities:
Net (payments) borrowings under line of credit agreement	(14,400)	47,450
Payments on other long-term liabilities	(351)us-gaap_RepaymentsOfOtherLongTermDebt	(356)us-gaap_RepaymentsOfOtherLongTermDebt
Tax benefit from exercise of stock options	1	235
Increase in other notes payable	200
Repurchases of common stock		(1,531)
Net (payments) proceeds from the issuance of common stock (sale of stock under ESPP and exercise of stock options)	(965)us-gaap_ProceedsFromRepurchaseOfEquity	1,018us-gaap_ProceedsFromRepurchaseOfEquity
Payment of cash dividends	(569)us-gaap_PaymentsOfDividends	(1,418)us-gaap_PaymentsOfDividends
Net cash (used in) provided by financing activities	(16,084)	45,398
Net increase in cash and cash equivalents	2,236	1,692
Cash and cash equivalents at beginning of period	4,885	6,680
Effect of exchange rate changes on cash	(251)	19
Cash and cash equivalents at end of period	$ 6,870	$ 8,391

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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