Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 4,290	$ 16,073
Restricted cash	189	533
Short-term investments	50,528	66,131
Accounts receivable, net	30,655	18,046
Accounts receivable-related parties	1,989	630
Inventories	22,823	11,135
Other inventory supplies	17,613	7,821
Prepaid expenses and other current assets	4,491	803
Deferred tax assets	3,078
Total current assets	135,656	121,172
Property and equipment, net	120,931	82,511
Investments	2,000	2,000
Other assets	1,365	1,059
Total assets	259,952	206,742
Liabilities and stockholders' equity
Accounts payable	12,831	9,255
Accrued payroll	1,578	2,538
Accrued and other current liabilities	1,570	1,345
Corporate income and franchise taxes	612	407
Advance payments	9	1,103
Total current liabilities	16,600	14,648
Deferred tax liability	15,121
Total liabilities	31,721	14,648
Commitments and contingencies (Note 9)
Stockholders' equity
Preferred stock, $0.001 par value, 5,000,000 undesignated shares authorized, no shares issued or outstanding
Common stock, $0.001 par value, 45,000,000 and 85,000,000 shares authorized; 24,289,723 and 24,210,644 shares issued; 22,514,879 and 22,960,669 shares outstanding	24	23
Additional paid-in capital	332,119	327,515
Treasury stock, at cost, 1,774,844 and 1,249,975 shares	(12,148)	(5,661)
Accumulated other comprehensive loss	(50)	(10)
Accumulated deficit	(91,714)	(129,773)
Total stockholders' equity	228,231	192,094
Total liabilities and stockholders' equity	$ 259,952	$ 206,742