Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 13,850	$ 12,960
Restricted cash	2,562	2,244
Accounts receivable, net	1,379	1,226
Prepaid expenses and other current assets	2,478	2,728
Total current assets	20,269	19,158
Property and equipment, net	27,890	28,130
Other assets	575	1,154
Total assets	48,734	48,442
Liabilities and stockholders' equity
Short term loan	0	35,000
Accounts payable	1,743	1,895
Accrued expenses and other current liabilities	5,056	5,256
Total current liabilities	6,799	42,151
Long term loan	17,426	0
Total liabilities	24,225	42,151
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value, 150,000 shares authorized, 89,592 and 69,479 shares issued and outstanding in 2011 and 2010, respectively	896	695
Additional paid-in capital	144,121	126,082
Accumulated deficit	(127,363)	(127,341)
Total stockholders' equity	24,509	6,291
Total liabilities and stockholders' equity	48,734	48,442
Series A Preferred Stock [Member]
Stockholders' equity:
Preferred stock	0	0
Series B Preferred Stock [Member]
Stockholders' equity:
Preferred stock	0	0
Series E Preferred Stock [Member]
Stockholders' equity:
Preferred stock	$ 6,855	$ 6,855