Commitments and Contingencies (Details)			1 Months Ended		3 Months Ended
	May 07, 2020 USD ($)	Feb. 21, 2020 USD ($)	Oct. 31, 2018 USD ($)	Apr. 30, 2017 USD ($) shares	Mar. 31, 2020 USD ($) letter_of_credit	Apr. 30, 2019 USD ($)
Loss Contingencies [Line Items]
Insurance coverage					$ 30,000,000
Number of outstanding letters of credit | letter_of_credit					7
Outstanding letters of credit amount					$ 3,000,000
Purchase commitment, penalty for not purchasing					$ 5,600,000
Dorvit v. Winemaster | Settled Litigation
Loss Contingencies [Line Items]
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
Don Wilkins V. The Company | Settled Litigation | Subsequent Event
Loss Contingencies [Line Items]
Litigation settlement payment	$ 900,000
Don Wilkins V. The Company | Settled Litigation | Chief Executive Officer | Subsequent Event
Loss Contingencies [Line Items]
Litigation settlement payment	$ 1,100,000
Mast Powertrain v. The Company
Loss Contingencies [Line Items]
Damages sought		$ 9,000,000