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Consolidated Balance Sheets - USD ($)
Dec. 31, 2017
Dec. 31, 2016
CURRENT ASSETS    
Cash and cash equivalents $ 1,108,193 $ 1,662,643
Restricted cash 10,010 10,000
Accounts receivable and other, net 232,380 473,806
Other current assets 495,527 609,462
Total current assets 1,846,110 2,755,911
PROPERTY AND EQUIPMENT    
Equipment and office fixtures 16,738,898 17,188,699
Marine asset held for sale   416,329
Accumulated depreciation (16,145,082) (15,809,774)
Total property and equipment 593,816 1,795,254
NON-CURRENT ASSETS    
Other non-current assets 532,500 532,500
Total non-current assets 532,500 532,500
Total assets 2,972,426 5,083,665
CURRENT LIABILITIES    
Accounts payable 2,396,835 1,397,349
Accrued expenses 6,551,335 5,078,125
Loans payable 24,363,442 20,731,807
Total current liabilities 33,311,612 27,207,281
LONG-TERM LIABILITIES    
Loans payable 3,000,000 4,335,501
Deferred income and revenue participation rights 4,643,750 4,643,750
Total long-term liabilities 7,643,750 8,979,251
Total liabilities 40,955,362 36,186,532
Commitments and contingencies (NOTE P)
STOCKHOLDERS' EQUITY/(DEFICIT)    
Preferred stock 0 0
Common stock - $.0001 par value; 75,000,000 shares authorized; 8,466,909 and; 7,718,366 issued and outstanding 847 772
Additional paid-in-capital 212,103,344 207,962,346
Accumulated (deficit) (234,709,910) (226,950,438)
Total stockholders' equity/(deficit) before non-controlling interest (22,605,719) (18,987,320)
Non-controlling interest (15,377,217) (12,115,547)
Total stockholders' equity/(deficit) (37,982,936) (31,102,867)
Total liabilities and stockholders' equity/(deficit) 2,972,426 5,083,665
Series D Convertible Preferred Stock [Member]    
STOCKHOLDERS' EQUITY/(DEFICIT)    
Preferred stock