Consolidated Balance Sheets (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 308,003	$ 1,461,718
Accounts receivable, net	1,468,067	2,492,976
Marketable securities	498,069	514,244
Prepaid expenses and other	75,635	114,589
Deferred tax asset, net	5,821	3,452
Assets from discontinued operations		73,895
Total current assets	2,355,595	4,660,874
Restricted cash	4,313,871	4,313,599
Property and equipment, net	1,422,693	677,328
Deposits and other	86,796	21,796
Total assets	8,178,955	9,673,597
Current liabilities:
Accounts payable and accrued expenses	1,241,537	721,837
Deposits held in trust	197,955	369
Revenues payable	368,375	230,947
Debt - current portion	268,257	299,767
Liabilities from discontinued operations		21,658
Total current liabilities	2,076,124	1,274,578
Other liabilities:
Debt	327,080	416,016
Derivative liabilities	2,510	2,510
Asset retirement obligation	15,030
Deferred tax liabilities	5,821	3,452
Total liabilities	2,426,565	1,696,556
Commitments and contingencies (Note 7)
Mezzanine equity:
Preferred stock, Series A convertible, $0.001 par value; and redemption value of 4,763,911 and 5,763,869 at June 30, 2013 and December 31, 2012, respectively	4,763,911	5,763,869
Stockholders' equity:
Common stock, $0.001 par value; 200,000,000 shares authorized; 27,725,736 shares issued and 26,724,695 outstanding at June 30, 2013 and 27,652,749 shares issued and 26,653,158 outstanding at December 31, 2012	27,726	27,653
Additional paid-in capital	20,593,183	20,546,744
Treasury stock, at cost: 1,001,041 shares at June 30, 2013 and 999,591 shares at December 31, 2012	(1,860,233)	(1,859,890)
Accumulated deficit	(17,752,884)	(16,506,529)
Accumulated other comprehensive income (loss)	(19,313)	5,194
Total stockholders' equity	988,479	2,213,172
Total liabilities and stockholders' equity	8,178,955	9,673,597
Series A Convertible Preferred Stock
Mezzanine equity:
Preferred stock, Series A convertible, $0.001 par value; and redemption value of 4,763,911 and 5,763,869 at June 30, 2013 and December 31, 2012, respectively	$ 4,763,911	$ 5,763,869