Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 12,682	$ 14,601
Restricted cash	1,681	1,354
Accounts receivable, net	1,759	1,478
Prepaid expenses and other current assets	4,413	2,769
Total current assets	20,535	20,202
Property and equipment, net	27,236	27,494
Project development costs	2,312	957
Other assets	305	1,181
Total assets	50,388	49,834
Liabilities and stockholders' equity
Accounts payable	2,162	2,079
Accrued expenses and other current liabilities	5,467	5,450
Total current liabilities	7,629	7,529
Long-term loan, related party	17,426	17,426
Total liabilities	25,055	24,955
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value, 150,000 shares authorized, 30,023 and 29,931 shares issued and outstanding in 2012 and 2011, respectively	300	299
Additional paid-in capital	145,620	145,204
Accumulated deficit	(127,442)	(127,479)
Total stockholders` equity	25,333	24,879
Total liabilities and stockholders` equity	50,388	49,834
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