Operations and Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended
	Mar. 31, 2024 USD ($) Y segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Business Description and Summary of Significant Accounting Policies
Number of operating segments | segment	2
Allowance for credit losses	$ 124,000		$ 121,000
Warranty period	27 months
Warranty reserve	$ 483,000		542,000
Inventory reserve	625,000		$ 587,000
Income taxes paid	0	$ 0
Interest paid	45,000	$ 5,000
Impairment of long-lived assets	$ 0
Minimum
Business Description and Summary of Significant Accounting Policies
Period inventory is expected to be used	2 years
Number of year's supply | Y	1