Note 7 - Net Loss per Share (Details) - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share - shares	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Securities	1,162,722	127,000
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Securities	1,070,222	0
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Securities	42,500	77,000
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Securities	50,000	50,000