Related Party Transactions - Additional Information (Details) - USD ($)				1 Months Ended	12 Months Ended
	Nov. 07, 2019	Apr. 01, 2019	Jan. 07, 2019	Jan. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Oct. 15, 2019	Jan. 01, 2019
Related Party Transaction [Line Items]
Accounts payable - related party					$ 0	$ 337,000
Accounts payable converted to common stock					10,000	36,000
Payment of principal amount to Peck						46,000
Accounts payable - related party amount settled					45,000	(77,000)
Recognized operating lease expense					6,200,000
Operating lease liabilities					13,535,000			$ 4,239,000
Advance from related parties						324,000
Accrued interest - related party					1,482,000	923,000
Security deposit					300,000
Recognized revenue						100,000
Accounts receivable - related party					$ 0	$ 41,000
Common stock, shares issued					14,333,834	2,258,530
Property, equipment, and land, net					$ 41,731,000	$ 7,604,000
CNG Tractors [Member]
Related Party Transaction [Line Items]
Common stock, shares issued							1,174,800
Warrant issued							1,174,800
Warrants, exercise price							$ 2.50
Property, equipment, and land, net							$ 3,500,000
Accrued expenses							$ 3,500,000
Description of warrants					Company entered into an agreement with an existing stockholder to purchase used CNG tractors in exchange for 1,174,800 shares of the Company’s common stock and a warrant to purchase 1,174,800 shares of the Company’s common stock at an exercise price of $2.50 per share.
Collateral Security Pledge Agreement [Member] | Sheehy Enterprises Inc [Member]
Related Party Transaction [Line Items]
Security deposit				$ 300,000
Related party transaction, expiration date				Mar. 01, 2020
Officer [Member]
Related Party Transaction [Line Items]
Recognized operating lease expense					$ 400,000
Operating lease liabilities					0
Officer and Sheehy Enterprises Inc [Member]
Related Party Transaction [Line Items]
Payment of principal amount to Peck			$ 150,000
Sheehy Enterprises Inc [Member] | Intercompany Agreement [Member]
Related Party Transaction [Line Items]
Payment of principal amount to Peck	$ 400,000
Repayments of related party notes	400,000
Issuance of common stock for exchange of bridge notes and interest	48,000
Accrued interest - related party	40,000
Gain or loss on settlement of related party debt	$ 0
Environmental Alternative Fuels LLC [Member]
Related Party Transaction [Line Items]
Advance from related parties					$ 0	$ 300,000
Common Stock
Related Party Transaction [Line Items]
Related party accounts payable converted to common stock, shares						50,000
Debt repayment in the form shares					0
Common Stock | Sheehy Enterprises Inc [Member] | Intercompany Agreement [Member]
Related Party Transaction [Line Items]
Debt repayment in the form shares	35,156
Former Officer [Member]
Related Party Transaction [Line Items]
Accounts payable converted to common stock		$ 100,000
Payment of principal amount to Peck		38,000
Accounts payable - related party amount settled		$ 300,000
Common stock, shares issued		117,092
Former Officer [Member] | Common Stock
Related Party Transaction [Line Items]
Related party accounts payable converted to common stock, shares		117,092
Accounts payable converted to common stock		$ 100,000
Former Officer [Member] | Gain on Conversion of Accounts Payable – Related Party [Member]
Related Party Transaction [Line Items]
Gain associated with issuance of common stock		$ 200,000