Weichai Transactions (Details)		12 Months Ended
	Mar. 20, 2017	Dec. 31, 2022 USD ($) agreement	Dec. 31, 2021 USD ($)	Mar. 25, 2022 USD ($)
Subsidiary, Sale of Stock [Line Items]
Debt instrument, number of loan agreements | agreement		4
Term of collaborative arrangement	3 years
Company sales		$ 600,000	$ 500,000
Outstanding receivables		400,000	200,000
Purchased inventory		13,300,000	12,400,000
Outstanding payables		23,400,000	12,500,000
Net sales from related party		2,749,000	493,000
Société Internationale Des Moteurs Baudouin | International Distribution and Sales Agreement
Subsidiary, Sale of Stock [Line Items]
Net sales from related party		2,200,000
Collaborative arrangement, receivable		1,900,000	$ 0
Revolving credit facility | First Shareholder's Loan Agreement, Weichai
Subsidiary, Sale of Stock [Line Items]
Maximum borrowing capacity				$ 130,000,000
Revolving credit facility | Amended Second Shareholder's Loan Agreement
Subsidiary, Sale of Stock [Line Items]
Maximum borrowing capacity		25,000,000
Revolving credit facility | Second Shareholder's Loan Agreement, Weichai
Subsidiary, Sale of Stock [Line Items]
Maximum borrowing capacity		50,000,000		$ 25,000,000
Revolving credit facility | Fourth Shareholder's Loan Agreement, Weichai
Subsidiary, Sale of Stock [Line Items]
Maximum borrowing capacity		$ 30,000,000