Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income (loss)	$ (49,404)	$ (43,474)	$ (1,529)	[1]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	21,748	22,079	16,864
Impairment of goodwill	0	29,748	0	[1]
Inventory valuation allowance	3,302	1,232	2,668
Deferred income taxes	703	1,531	(842)
Deferred tax valuation allowance provision (reversal)	12,476	0	(10,350)
Write off of purchased computer software	2,868	0	0
Gain on the sale of purchased computer software	(1,532)	0	0
Gain on the liquidation of a foreign subsidiary	0	0	(2,081)	[1]
Gain on sale of property held for sale	(771)	0	0
Stock-based compensation expense	5,298	1,391	5,717
Other	330	1,210	2,250
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	11,119	(2,082)	7,146
Other receivables	(303)	1,005	(1,202)
Inventories	(10,192)	4,864	(9,221)
Inventory deposit	10,349	352	(2,249)
Other current assets	(1,197)	744	451
Accounts payable	(6,013)	3,718	2,629
Accrued wages and bonuses	(1,640)	(3,608)	1,317
Accrued restructuring	1,551	(3,014)	2,148
Deferred income	(1,145)	(2,733)	4,269
Other accrued liabilities	362	(7,352)	(3,177)
Net cash provided by (used in) operating activities	(2,091)	5,611	14,808
Cash flows from investing activities:
Acquisitions, net of cash acquired	0	0	(79,298)
Capital expenditures	(6,047)	(11,092)	(8,171)
Proceeds from sale of software assets	1,137	0	0
Proceeds from sale of land	1,415	0	0
Other	0	(68)	(500)
Net cash used in investing activities	(3,495)	(11,160)	(87,969)
Cash flows from financing activities:
Borrowings on line of credit	15,000	0	0
Payments on contingent consideration liability	(447)	0	0
Repayment of convertible notes	(16,919)	(10,081)	(4,875)
Repurchases of common stock	0	0	(3,920)
Proceeds from issuance of common stock	806	1,272	1,646
Other financing activities	(474)	(213)	(923)
Net cash used in financing activities	(2,034)	(9,022)	(8,072)
Effect of exchange rate changes on cash	(80)	(17)	(75)
Net decrease in cash and cash equivalents	(7,700)	(14,588)	(81,308)
Cash and cash equivalents, beginning of period	33,182	47,770	129,078
Cash and cash equivalents, end of period	25,482	33,182	47,770
Supplemental disclosure of cash flow information:
Interest	1,090	1,347	1,424
Income taxes	1,415	1,202	806
Supplemental disclosure of non-cash investing and financing activities:
Issuance of common stock for acquisitions	$ 0	$ 0	$ 30,818

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