Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 5,291,000	$ 9,063,000
Restricted cash	1,289,000	1,240,000
Accounts receivable, net	1,357,000	1,006,000
Prepaid expenses and other current assets	3,359,000	2,839,000
Total current assets	11,296,000	14,148,000
Property and equipment, net	26,506,000	26,568,000
Project development costs	14,655,000	11,516,000
Other assets	126,000	217,000
Total assets	52,583,000	52,449,000
Current liabilities:
Accounts payable	3,496,000	2,805,000
Accrued expenses and other current liabilities	7,221,000	7,405,000
Total current liabilities	10,717,000	10,210,000
Long-term loan, related party	17,426,000	17,426,000
Total liabilities	28,143,000	27,636,000
Commitments and contingencies
Stockholders' equity:
Preferred stock, 5,000 shares authorized; $0.01 par value -	0	0
Common stock, $0.01 par value, 150,000 shares authorized, 30,023 and 29,931 shares issued and outstanding in 2012 and 2011, respectively	300,000	300,000
Additional paid-in capital	146,164,000	146,083,000
Accumulated deficit	(128,879,000)	(128,425,000)
Total stockholders' equity	24,440,000	24,813,000
Total liabilities and stockholders' equity	52,583,000	52,449,000
Series A [Member]
Stockholders' equity:
Preferred stock, 5,000 shares authorized; $0.01 par value -	0	0
Series B [Member]
Stockholders' equity:
Preferred stock, 5,000 shares authorized; $0.01 par value -	0	0
Series E [Member]
Stockholders' equity:
Preferred stock, 5,000 shares authorized; $0.01 par value -	$ 6,855,000	$ 6,855,000