Litigation (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)
Litigation
Amount of alleged damages		$ 5,000,000
Legal settlement awards	$ 1,890,000	1,890,000
Aero, Inc.
Litigation
Amount of alleged damages		3,000,000
Amount of counter claim		3,191,000
Charge associated with proposed settlement	1,800,000	1,800,000
Gain or loss on litigation		0
The Ontario Knife Company
Litigation
Amount of alleged damages		750,000
Charge associated with proposed settlement	$ 90,000	$ 90,000