CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 72,273	$ 81,985
Income tax receivable	9,268	6,939
Accounts receivable, trade, less allowances for doubtful accounts of $2,365 and $118 in 2013 and 2012, respectively	1,949	5,316
Inventories, net	9,635	8,585
Prepaid expenses	1,104	1,374
Deferred tax assets	1,789	1,823
Other current assets	1,173	596
Total current assets	97,191	106,618
Property, plant and equipment, net	28,333	27,750
Deferred financing costs, net	155	189
Deferred tax assets	12,889	11,728
Other noncurrent assets	889	879
Total assets	139,457	147,164
CURRENT LIABILITIES
Accounts payable	4,854	2,893
Accrued liabilities (Note 7)	8,570	10,376
Income taxes payable	857	917
Total current liabilities	14,281	14,186
Other long-term liabilities	5,531	5,539
Total liabilities	19,812	19,725
COMMITMENTS AND CONTINGENCIES (Note 8)
Stockholders' Equity
Preferred stock, $0.01 par value, 20,000,000 shares authorized; no shares issued and outstanding
Common stock, $0.01 par value, 200,000,000 shares authorized; 41,822,757 and 41,819,035 issued and outstanding, respectively, in 2013 and 41,684,960 and 41,681,238 issued and outstanding, respectively, in 2012	417	416
Treasury stock, at cost	(57)	(57)
Additional paid-in capital	234,816	233,659
Accumulated deficit	(112,836)	(104,135)
Accumulated other comprehensive loss, net	(2,695)	(2,444)
Total stockholders' equity	119,645	127,439
Total liabilities and stockholders' equity	$ 139,457	$ 147,164