Note 2 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	2019			2018
Current:
Federal	$	—		$	—
State		11,000			7,000
		11,000			7,000
Deferred - Federal		(183,000	)		39,000
	$	(172,000	)	$	46,000

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

	2019			2018
Expected income tax (benefit) provision for federal income taxes	$	(207,000	)	$	39,000
State income taxes, net of federal benefit		(7,000	)		7,000
Non-deductible meals, entertainment, and life insurance		11,000			12,000
Research and development credit		(29,000	)		(43,000	)
Change in valuation allowance		51,000			18,000
Prior year true-ups and other		9,000			13,000
	$	(172,000	)	$	46,000

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

	2019			2018
Deferred tax liabilities:
Accrued vacation	$	21,000		$	18,000
Inventories reserve		42,000			46,000
Allowance for doubtful accounts		3,000			2,000
Allowance for sales returns		10,000			9,000
Research and development credit carryforward		245,000			161,000
Accrued self-insured medical		3,000			4,000
Property and equipment		(295,000	)		(282,000	)
Intangible assets		(53,000	)		(73,000	)
Net operating loss		230,000			33,000
Other		8,000			8,000
Valuation allowance		(214,000	)		(109,000	)
Net deferred tax liabilities	$	—		$	(183,000	)