Note 5 - Income (Loss) Per Share (Tables)

6 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended		Three Months Ended
	September 30, 2015		September 30, 2014
Basic net income (loss) per share computation:
Net income (loss)	$	199,466	$	(248,195	)
Weighted-average common shares outstanding		3,256,887		3,252,702
Basic net  income (loss) per share	$	0.06	$	(0.08	)
Diluted net income (loss) per share computation
Net income (loss)	$	199,466	$	(248,195	)
Add: Change in fair value of warrants		-		-
Diluted income (loss)		199,466		(248,195	)
Weighted-average common shares outstanding		3,256,887		3,252,702
Incremental shares attributable to the assumed exercise of outstanding stock options and warrants		3,912		-
Total adjusted weighted-average shares		3,260,799		3,252,702
Diluted net income (loss) per share	$	0.06	$	(0.08	)

	Six Months Ended		Six Months Ended
	September 30, 2015		September 30, 2014
Basic net income (loss) per share computation:
Net income (loss)	$	478,532	$	(632,200	)
Weighted-average common shares outstanding		3,256,887		3,252,048
Basic net  income (loss) per share	$	0.15	$	(0.19	)
Diluted net income (loss) per share computation
Net income (loss)	$	478,532	$	(632,200	)
Add: Change in fair value of warrants		-		-
Diluted income (loss)		478,532		(632,200	)
Weighted-average common shares outstanding		3,256,887		3,252,048
Incremental shares attributable to the assumed exercise of outstanding stock options and warrants		5,171		-
Total adjusted weighted-average shares		3,262,058		3,252,048
Diluted net income (loss) per share	$	0.15	$	(0.19	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table summarizes securities that, if exercised, would have an anti-dilutive effect on earnings per share:

	September 30, 2015		September 30, 2014
Stock options		99,500		85,500
Warrants		286,920		297,336
		386,420		382,836