Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 865	$ 5,570
Short-term available-for-sale investments	226
Prepaid and other current assets	914	$ 863
Total Current Assets	2,005	6,433
Property, plant and equipment, at cost:
Property, plant and equipment	114,496	98,454
Less accumulated depreciation, depletion and impairment	(65,684)	(65,724)
Net property, plant and equipment	48,812	32,730
Restricted cash	4,026	$ 3,941
Long-term assets held for sale	2,123
Total Assets	56,966	$ 43,104
Current Liabilities:
Accounts payable	3,046	796
Accrued liabilities	1,569	$ 1,680
Convertible loan net of discount - related party	6,154
Current portion of asset retirement obligations	121	$ 196
Total Current Liabilities	10,890	2,672
Asset retirement obligations, net of current portion	$ 4,242	3,895
Convertible loan net of discount - related party		4,345
Other long-term liabilities and deferred credits	$ 800	500
Long term liabilities related to assets held for sale	555	555
Total Liabilities	$ 16,487	$ 11,967
Commitments and Contingencies
Stockholders' Equity:
Common stock, 100,000,000 shares authorized, $.001 par value; Issued shares - 4,530,211 and 2,107,400, respectively Outstanding shares - 4,522,186 and 2,099,375, respectively	$ 5	$ 2
Paid-in capital	258,096	$ 233,547
Accumulated other comprehensive income	(67)
Accumulated deficit	(217,297)	$ (202,154)
Less: Treasury stock (8,025 and 8,025 shares, respectively), at cost	(258)	(258)
Total Stockholders' Equity	40,479	31,137
Total Liabilities and Stockholders' Equity	$ 56,966	$ 43,104

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).

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

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).