Note 10 - Income Taxes (Tables)

12 Months Ended

Mar. 31, 2018

Notes Tables

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

	2018			2017
Deferred tax assets (liabilities):
Net operating loss carry-forward	$	554,000		$	915,000
Stock based compensation		196,000			279,000
Research & development tax credit carry-forward		495,000			-
Other		43,000			11,000
Deferred tax assets		1,288,000			1,205,000
Valuation allowance		(196,000	)		(279,000	)
Deferred tax asset, net	$	1,092,000		$	926,000

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

	2018		2017
Statutory federal income tax rate		31%		34%
Change in valuation allowance		263%		(40%)
Effective income tax rate		294%		(6%)