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

9 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

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

	Three Months Ended		Three Months Ended
	December 31, 2015		December 31, 2014
Basic net income (loss) per share computation:
Net income (loss)	$	226,586	$	(20,944	)
Weighted-average common shares outstanding		3,256,887		3,255,028
Basic net  income (loss) per share	$	0.07	$	(0.01	)
Diluted net income (loss) per share computation
Net income (loss)	$	226,586	$	(20,944	)
Add: Change in fair value of warrants		-		-
Diluted income (loss)		226,586		(20,944	)
Weighted-average common shares outstanding		3,256,887		3,255,028
Incremental shares attributable to the assumed exercise of outstanding stock options and warrants		4,803		-
Total adjusted weighted-average shares		3,261,690		3,255,028
Diluted net income (loss) per share	$	0.07	$	(0.01	)

	Nine Months Ended		Nine Months Ended
	December 31, 2015		December 31, 2014
Basic net income (loss) per share computation:
Net income (loss)	$	705,118	$	(653,144	)
Weighted-average common shares outstanding		3,256,887		3,253,045
Basic net  income (loss) per share	$	0.22	$	(0.20	)
Diluted net income (loss) per share computation
Net income (loss)	$	705,118	$	(653,144	)
Add: Change in fair value of warrants		-		-
Diluted income (loss)		705,118		(653,144	)
Weighted-average common shares outstanding		3,256,887		3,253,045
Incremental shares attributable to the assumed exercise of outstanding stock options and warrants		5,068		-
Total adjusted weighted-average shares		3,261,955		3,253,045
Diluted net income (loss) per share	$	0.22	$	(0.20	)

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:

	December 31, 2015		December 31, 2014
Stock options		80,000		85,500
Warrants		286,920		297,336
		366,920		382,836