Consolidated Balance Sheets - USD ($)	Mar. 31, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash and cash equivalents	$ 1,363,063	$ 1,108,193
Restricted cash	10,010	10,010
Accounts receivable and other, net	542,375	232,380
Other current assets	517,174	495,527
Total current assets	2,432,622	1,846,110
PROPERTY AND EQUIPMENT
Equipment and office fixtures	15,822,110	16,738,898
Accumulated depreciation	(15,294,005)	(16,145,082)
Total property and equipment	528,105	593,816
NON-CURRENT ASSETS
Other non-current assets	532,500	532,500
Total non-current assets	532,500	532,500
Total assets	3,493,227	2,972,426
CURRENT LIABILITIES
Accounts payable	2,366,002	2,396,835
Accrued expenses and other	7,228,890	6,551,335
Deposit related to sale of marine assets	1,000,000
Loans payable	25,775,001	24,363,442
Total current liabilities	36,369,893	33,311,612
LONG-TERM LIABILITIES
Loans payable	3,000,000	3,000,000
Revenue participation rights	4,643,750	4,643,750
Total long-term liabilities	7,643,750	7,643,750
Total liabilities	44,013,643	40,955,362
Commitments and contingencies (NOTE G)
STOCKHOLDERS' EQUITY/(DEFICIT)
Preferred stock - $.0001 par value; 24,984,166 shares authorized; none outstanding	0	0
Common stock - $.0001 par value; 75,000,000 shares authorized; 8,466,909 and 8,466,909 issued and outstanding for each period end presented	847	847
Additional paid-in capital	212,207,248	212,103,344
Accumulated deficit	(236,454,672)	(234,709,910)
Total stockholders' equity/(deficit) before non-controlling interest	(24,246,577)	(22,605,719)
Non-controlling interest	(16,273,839)	(15,377,217)
Total stockholders' equity/(deficit)	(40,520,416)	(37,982,936)
Total liabilities and stockholders' equity/(deficit)	$ 3,493,227	$ 2,972,426

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.