Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 51,404	[1]	$ 36,940	[2]
Short-term investments	48,356	[1]	64,301	[2]
Restricted cash	2,108	[1]	2,626	[2]
Accounts receivable, net of allowance for doubtful accounts	63,267	[1]	70,354	[2]
Inventories	61,859	[1]	43,793	[2]
Prepaid expenses and other current assets	10,480	[1]	7,630	[2]
Total current assets	237,474	[1]	225,644	[2]
Long-term investments	331	[1]	188	[2]
Property, plant and equipment, net	70,001	[1]	54,440	[2]
Other intangible assets, net	18,766	[1]	14,213	[2]
Other long-term assets	1,361	[1]	1,147	[2]
Total assets	327,933	[1]	295,632	[2]
Current liabilities:
Accounts payable	40,817	[1]	36,308	[2]
Notes payable	10,431	[1]	12,003	[2]
Current portion of long-term debt	8,960	[1]	5,000	[2]
Accrued and other current liabilities	24,874	[1]	19,959	[2]
Total current liabilities	85,082	[1]	73,270	[2]
Long-term debt, net of current portion	42,170	[1]	17,167	[2]
Deferred income tax liabilities	655	[1]	653	[2]
Other noncurrent liabilities	8,147	[1]	1,862	[2]
Total liabilities	136,054	[1]	92,952	[2]
Commitments and contingencies (Note 10)		[1]		[2]
Stockholders’ equity:
Preferred stock, $0.0025 par value At March 31,2013 and At December 31, 2012: 10,000,000 shares authorized, no shares issued or outstanding:		[1]		[2]
Common stock, $0.0025 par value At March 31, 2013: 100,000,000 shares authorized, 30,604,293 shares issued and outstanding; At December 31, 2012: 100,000,000 shares authorized, 30,546,155 shares issued and outstanding	76	[1]	76	[2]
Additional paid-in capital	440,144	[1]	438,858	[2]
Accumulated other comprehensive income	11,982	[1]	11,829	[2]
Accumulated deficit	(260,323)	[1]	(248,083)	[2]
Total stockholders’ equity	191,879	[1]	202,680	[2]
Total liabilities and stockholders’ equity	$ 327,933	[1]	$ 295,632	[2]

[1] Restated and Revised, see Notes 2 and 7

[2] Revised, see Note 2