Commitments and Contingencies (Details)		1 Months Ended							12 Months Ended
	Apr. 22, 2020 USD ($)	Oct. 31, 2019 USD ($)	Feb. 28, 2019 USD ($)	Jan. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2017 USD ($)	Apr. 30, 2017 USD ($) shares	Dec. 31, 2019 USD ($) letter_of_credit	Dec. 31, 2018 USD ($)	Apr. 30, 2019 USD ($)
Loss Contingencies [Line Items]
Number of outstanding letters of credit | letter_of_credit									7
Outstanding letters of credit amount									$ 3,000,000
Supply Agreement
Loss Contingencies [Line Items]
Minimum product purchase commitment		$ 40,000,000
Product purchases									47,200,000	$ 44,900,000
Asset Purchase Agreement - Alternative Fuel Supply Technology
Loss Contingencies [Line Items]
Payments for commissions						$ 1,200,000	$ 1,200,000		$ 400,000	$ 1,000,000
Guinta v. Power Solutions International, Inc.
Loss Contingencies [Line Items]
Litigation settlement payment				$ 8,500,000
Litigation amount paid			$ 8,500,000
Dorvit v. Winemaster | Settled Litigation
Loss Contingencies [Line Items]
Range of damages sought											$ 1,900,000
Jerome Treadwell v. The Company
Loss Contingencies [Line Items]
Recovery per negligent violation					$ 1,000
Recovery per intentional or reckless violation					$ 5,000
Don Wilkins V. The Company
Loss Contingencies [Line Items]
Damages sought								$ 2,000,000
Don Wilkins V. The Company | Restricted Stock
Loss Contingencies [Line Items]
Damages sought (in shares) | shares								20,000
Subsequent Event | Don Wilkins V. The Company | Settled Litigation
Loss Contingencies [Line Items]
Litigation settlement payment	$ 900,000
Subsequent Event | Don Wilkins V. The Company | Settled Litigation | Chief Executive Officer
Loss Contingencies [Line Items]
Litigation settlement payment	$ 1,100,000