Note L - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2021			2020
Allowance for Doubtful Accounts	$	2,000		$	2,000
Warranty Reserve		3,000			5,000
Impaired Assets					-
Inventory Reserve		108,000			110,000
Deferred Officer's Compensation		439,000			816,000
Depreciation and Amortization		(52,000	)		(67,000	)
Net Operating Loss Carryforwards		18,895,000			17,993,000
Tax Credits		660,000			416,000
Other		45,000			10,000
Subtotal		20,100,000			19,285,000
Valuation allowance		(20,100,000	)		(19,285,000	)
Non-current deferred tax asset		-			-

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2021			2020
Statutory rate		21.00	%		21.00	%
State income tax-all states		7.44	%		1.00	%
NOL Expiration		-9.13	%		-11.00	%
Other		-7.79	%		8.00	%
Subtotal		11.52	%		19.00	%
Valuation allowance		-11.52	%		-19.00	%
Effective tax rate		0	%		0	%