Note L - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	2019			2018
Allowance for doubtful accounts	$	2,000		$	3,000
Warranty reserve		5,000			29,000
Impaired Assets		-			435,000
Inventory Reserve		178,000			551,000
Deferred officers' compensation		820,000			715,000
Depreciation and Amortization		(103,000	)		345,000
Net operating loss carryforward		16,504,000			16,500,000
Tax Credit		384,000			-
Other		(28,000	)		-
Subtotal		17,762,000			18,578,000
Valuation allowance		(17,762,000	)		(18,578,000	)
Non-current deferred tax asset	$	-		$	-

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

	2019			2018
Statutory rate		21	%		21	%
State income tax-all states		4	%		7	%
Change in fair value of derivative		-11	%		0	%
NOL Expiration		-22	%		0	%
Other		-3	%		0	%
Subtotal		-11	%		28	%
Valuation allowance		11	%		-28	%
Effective tax rate		0	%		0	%