Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and cash equivalents	$ 1,662,643	$ 2,241,317
Restricted cash	10,000
Accounts receivable and other, net	473,806	801,575
Other current assets	609,462	502,698
Total current assets	2,755,911	3,545,590
PROPERTY AND EQUIPMENT
Equipment and office fixtures	17,188,699	22,460,256
Marine asset held for sale	416,329
Accumulated depreciation	(15,809,774)	(19,633,420)
Total property and equipment	1,795,254	2,826,836
NON-CURRENT ASSETS
Other non-current assets	532,500	540,590
Total non-current assets	532,500	540,590
Total assets	5,083,665	6,913,016
CURRENT LIABILITIES
Accounts payable	1,397,347	1,567,620
Accrued expenses and other	5,078,125	4,265,456
Deferred income and revenue participation rights		383,148
Derivative liabilities		3,402,416
Loans payable	20,731,807	15,058,845
Total current liabilities	27,207,279	24,677,485
LONG-TERM LIABILITIES
Loans payable	4,335,501	3,140,787
Deferred income and revenue participation rights	4,643,750	4,643,750
Total long-term liabilities	8,979,251	7,784,537
Total liabilities	36,186,530	32,462,022
Commitments and contingencies (NOTE P)
STOCKHOLDERS' EQUITY/(DEFICIT)
Preferred stock	0	0
Common stock - $.0001 par value; 75,000,000 shares authorized; 7,718,366 and; 7,541,111 issued and outstanding	772	754
Additional paid-in capital	207,962,346	204,438,148
Accumulated deficit	(226,950,436)	(220,634,415)
Total stockholders' equity/(deficit) before non-controlling interest	(18,987,318)	(16,195,513)
Non-controlling interest	(12,115,547)	(9,353,493)
Total stockholders' equity/(deficit)	(31,102,865)	(25,549,006)
Total liabilities and stockholders' equity/(deficit)	5,083,665	6,913,016
Series D Convertible Preferred Stock [Member]
STOCKHOLDERS' EQUITY/(DEFICIT)
Preferred stock