Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 2,700	$ 46,682
Restricted cash	150	150
Accounts receivable, net of allowance for doubtful accounts of $714 and $571 at December 31, 2012 and 2011, respectively	42,259	44,567
Inventories, net	45,177	37,888
Deferred tax assets, net	1,274	841
Other current assets	4,654	1,933
Total current assets	96,214	132,061
Property and equipment, net	56,499	43,914
Goodwill	26,943	26,943
Deferred tax assets, net	16,045	0
Other intangible assets, net	24,166	29,094
TOTAL ASSETS	219,867	232,012
Current liabilities:
Accounts payable	22,373	18,562
Accrued liabilities	6,503	8,397
Income taxes payable	3,479	3,876
Interest payable	114	2,097
Convertible senior notes, net of discount	5,133	0
Current portion of long-term debt	4,329	767
Total current liabilities	41,931	33,699
Convertible senior notes, net of discount	0	99,738
Long-term debt, less current portion	22,455	875
Warrant liability	0	16,622
Deferred tax liabilities, net	751	2,780
Total liabilities	65,137	153,714
Commitments and contingencies
Stockholders’ equity:
Cumulative convertible preferred stock, $0.0001 par value, 100,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.0001 par value, 80,000,000 shares authorized; 53,123,978 shares issued and 49,601,495 shares outstanding at December 31, 2012; 51,957,652 shares issued and 49,153,495 shares outstanding at December 31, 2011	5	5
Additional paid-in capital	195,485	166,814
Accumulated other comprehensive income (loss)	(40)	(44)
Accumulated deficit	(37,019)	(86,810)
Treasury stock, at cost; 2,198,193 and 1,358,299 shares at December 31, 2012 and 2011, respectively	(3,701)	(1,667)
Total stockholders’ equity	154,730	78,298
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 219,867	$ 232,012