Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current
Cash and cash equivalents	$ 132	$ 76
Accounts receivable, less allowance for doubtful accounts of $14	581	490
Accounts receivable - related party, less allowance for doubtful accounts of $159
Inventory	511	627
Other current assets	243	421
Total current assets	1,467	1,614
Loan fees, net	17	24
Oil and gas properties, net (full cost accounting method)	4,926	5,225
Manufactured Methane facilities, net	1,528	1,559
Other property and equipment, net	130	140
Total assets	8,068	8,562
Current liabilities
Accounts payable - trade	174	303
Accounts payable - other	159	159
Accrued and other current liabilities	202	274
Current maturities of long-term debt	57	55
Total current liabilities	592	791
Asset retirement obligation	2,084	2,046
Long term debt, less current maturities	41	2,447
Total liabilities	2,717	5,284
Commitments and contingencies (Note 13)
Stockholders' equity
Common stock, $.001 par value, authorized 100,000,000 shares, 10,608,952 and 6,097,723 shares issued and outstanding	11	6
Additional paid-in capital	58,246	55,787
Accumulated deficit	(52,906)	(52,515)
Total stockholders' equity	5,351	3,278
Total liabilities and stockholders' equity	$ 8,068	$ 8,562