Business Description and Summary of Significant Accounting Policies - Additional Information (Details)	9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) Y	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for doubtful accounts	$ 140,000		$ 131,000
Warranty period	27 months
Warranty reserve	$ 543,000		511,000
Inventory reserve	1,631,000		1,742,000
Income taxes, refund received	811,000	$ 345,000
Income taxes paid	50,000	720,000
Interest paid	76,000	$ 110,000
Impairment of long-lived assets	$ 0		$ 0
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Period inventory is expected to be used	1 year
Number of years of customer requirements | Y	2
Number of year's supply | Y	1