Organization (Details) - $ / shares	May 01, 2018	Feb. 01, 2018
California Warrant [Member]
Organization (Textual)
Divestitures, description		On February 1, 2018, an entity managed by Yorktown Partners, LLC ("Yorktown") exercised a warrant it held to purchase shares of our common stock at an exercise price of $7.20 per share (the "California Warrant"), resulting in the issuance of 1,527,778 shares of our common stock. In exchange, we received Yorktown's Class A Units of Carbon California representing approximately 46.96% of the then outstanding Class A Units of Carbon California (a profits interest of approximately 38.59%).
Carbon California [Member]
Organization (Textual)
Warrant exercise price		$ 7.20
Divestitures, description	Carbon California closed the Seneca Acquisition. Following the exercise of the California Warrant by Yorktown and the Seneca Acquisition, we own 53.9% of the voting and profits interests and Prudential owns 46.1% voting and profits interest in Carbon California.
Profits interest	53.90%	38.59%
Voting percentage	53.90%	56.40%