Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 18,357	$ 16,073
Restricted cash	514	533
Short-term investments	53,713	66,131
Accounts receivable, net	29,285	18,676
Inventories, net	16,705	11,135
Other inventory supplies	13,457	7,821
Prepaid expenses and other current assets	4,052	1,862
Deferred tax assets	1,990
Total current assets	138,073	122,231
Property and equipment, net	116,318	82,511
Investments	2,000	2,000
Total assets	256,391	206,742
Liabilities and stockholders' equity
Accounts payable	6,765	9,255
Accrued payroll	2,096	2,538
Corporate income and franchise taxes	253	407
Advance payments	265	1,103
Accrued and other current liabilities	3,326	1,345
Total current liabilities	12,705	14,648
Deferred tax liability	12,266
Total liabilities	24,971	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 and 24,289,523 and 24,210,644 shares issued; 22,614,679 and 22,960,669 shares outstanding	24	23
Additional paid-in capital	335,205	327,515
Treasury stock, at cost, 1,674,844 and 1,249,975 shares	(11,143)	(5,661)
Accumulated other comprehensive loss	(91)	(10)
Accumulated deficit	(92,575)	(129,773)
Total stockholders' equity	231,420	192,094
Total liabilities and stockholders' equity	$ 256,391	$ 206,742