CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 877	$ 1,870
Prepaid and other current assets	843	491
Total Current Assets	1,720	2,361
Property, plant and equipment, at cost:
Property, plant and equipment	91,701	91,746
Less accumulated depreciation and depletion	(71,377)	(71,409)
Net property, plant and equipment	20,324	20,337
Operating lease right of use assets	454	484
Restricted cash	3,806	3,797
Total Assets	26,304	26,979
Current Liabilities:
Accounts payable	1,486	852
Accrued liabilities	1,227	1,770
Current portion of asset retirement obligations	1,090	894
Operating lease liability - current	153	153
Total Current Liabilities	3,956	3,669
Asset retirement obligations, net of current portion	5,290	5,406
Other long-term liabilities	500	500
Operating lease liability - current	310	340
Total Liabilities	10,056	9,915
Commitments and Contingencies
Stockholders’ Equity:
Common stock, 100,000,000 shares authorized, $.001 par value; Issued shares – 4,762,794 and 3,339,541 respectively Outstanding shares - 4,762,633 and 3,339,380 respectively	5	3
Paid-in capital	322,227	319,758
Accumulated deficit	(305,726)	(302,439)
Less: Treasury stock (161 and 161 shares, respectively), at cost	(258)	(258)
Total Stockholders’ Equity	16,248	17,064
Total Liabilities and Stockholders’ Equity	$ 26,304	$ 26,979