Liquidity	6 Months Ended
Jun. 30, 2018
Liquidity [Abstract]
Liquidity	(2) Liquidity The Company incurred a net loss of approximately $574,000 in 2017. In January 2018, the Company sold its methane facility for $2.65 million. During 2018, the Company believes its revenues as well as the proceeds received from the sale of the methane facility will be sufficient to fund operating and general and administrative expenses and to remain in compliance with its bank covenants. If revenues and the proceeds from the sale of the methane facility are not sufficient to fund these expenses or if the Company needs additional funds for capital spending, the Company could borrow funds against the credit facility as this facility currently has a $2.0 million borrowing base with no funds currently drawn. In addition, if required, the Company could also issue additional shares of stock and/or sell assets as needed to further fund operations.

(2) Liquidity

The Company incurred a net loss of approximately $574,000 in 2017. In January 2018, the Company sold its methane facility for $2.65 million. During 2018, the Company believes its revenues as well as the proceeds received from the sale of the methane facility will be sufficient to fund operating and general and administrative expenses and to remain in compliance with its bank covenants. If revenues and the proceeds from the sale of the methane facility are not sufficient to fund these expenses or if the Company needs additional funds for capital spending, the Company could borrow funds against the credit facility as this facility currently has a $2.0 million borrowing base with no funds currently drawn. In addition, if required, the Company could also issue additional shares of stock and/or sell assets as needed to further fund operations.