Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2024

Tables/Schedules

Inventory

	December 31, 2024			December 31, 2023
Inventories:
Raw materials	$	2,569,277		$	2,878,869
Work in process		1,605,994			2,374,795
Finished goods		2,864,549			2,614,989
		7,039,820			7,868,653
Valuation reserves		(543,650	)		(541,000	)
	$	6,496,170		$	7,327,653

Property, Plant and Equipment

	December 31, 2024			December 31, 2023
Property, Plant and Equipment, net:
Land and improvements	$	1,401,402		$	1,510,513
Buildings and improvements		6,095,394			6,835,619
Machinery and equipment		36,275,019			37,019,453
Capitalized software and other		344,591			933,449
		44,116,406			46,299,034
Accumulated depreciation		(33,381,267	)		(34,633,952	)
	$	10,735,139		$	11,665,082

Other Accrued Expenses

	December 31, 2024		December 31, 2023
Other Accrued Expenses:
Property taxes	$	4,800	$	20,342
Customer settlement - current		177,000		—
All other items		102,697		109,621
	$	284,497	$	129,963

Schedule of Valuation and Qualifying Accounts

	December 31, 2024			December 31, 2023
Allowance for Credit Losses:
Balance at beginning of year	$	160,000		$	160,000
Charges to Statements of Operations		80,057			13,804
Write-offs, net of recoveries		(42,521	)		(13,804	)
Balance at end of year	$	197,536		$	160,000

	December 31, 2024			December 31, 2023
Inventory Valuation Reserves:
Balance at beginning of year	$	541,000		$	621,000
Charges to Statements of Operations		64,805			143,233
Write-offs		(62,155	)		(223,233	)
Balance at end of year	$	543,650		$	541,000