Note 7 - Net Loss per Share (Tables)

3 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

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

	Three Months Ended			Three Months Ended
	June 30, 2018			June 30, 2017
Basic net loss per share computation:
Net loss	$	(746,073	)	$	(286,091	)
Add: Preferred dividends		(60,000	)		-
Net loss attributable to common shareholders		(806,073	)		(286,091	)
Weighted-average common shares outstanding		3,255,887			3,255,887
Basic net loss per share	$	(0.25	)	$	(0.09	)
Diluted net loss per share computation
Net loss	$	(746,073	)	$	(286,091	)
Add: Preferred dividends		(60,000	)		-
Add: Change in fair value of warrants		-			95,000
Diluted loss	$	(806,073	)		(381,091	)
Weighted-average common shares outstanding		3,255,887			3,255,887
Incremental shares attributable to the assumed exercise of outstanding stock options and warrants		-			10,653
Total adjusted weighted-average shares		3,255,887			3,266,540
Diluted net loss per share	$	(0.25	)	$	(0.12	)

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:

	June 30, 2018		June 30, 2017
Convertible preferred stock		1,050,222		-
Stock options		42,500		79,000
Warrants		50,000		-
		1,142,722		79,000