Business Description and Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) customer Y	Dec. 31, 2021 USD ($)
Business Description and Summary of Significant Accounting Policies
Allowance for doubtful accounts	$ 135,000	$ 131,000
Warranty period	27 months
Warranty reserve	$ 581,000	511,000
Inventory reserve	1,258,000	1,742,000
Income taxes refunded/paid	636,000	345,000
Interest paid	240,000	187,000
Impairment of long-lived assets	$ 0	$ 0
Concentration risk, benchmark description	No other customers of the ATG or CPG represented more than 10% of the Company’s consolidated revenues in either of these years
Minimum
Business Description and Summary of Significant Accounting Policies
Number of years of customer requirements | Y	2
Number of year's supply | Y	1
Customer Concentration Risk | Advanced technology products | Sales Revenue
Business Description and Summary of Significant Accounting Policies
Number of customers | customer	2
Customer Concentration Risk | Advanced technology products | Sales Revenue | Two Customers
Business Description and Summary of Significant Accounting Policies
Concentration risk, benchmark description	more than 10%
Customer Concentration Risk | Advanced technology products | Sales Revenue | Customer A
Business Description and Summary of Significant Accounting Policies
Concentration risk, percentage	49.00%	52.60%
Customer Concentration Risk | Advanced technology products | Sales Revenue | Customer B
Business Description and Summary of Significant Accounting Policies
Concentration risk, percentage	49.00%	52.60%