Consolidated Balance Sheets (Parentheticals) - USD ($)	Mar. 31, 2017	Mar. 31, 2016
Allowance for doubtful accounts	$ 25,000	$ 25,000
Property and equipment, accumulated depreciation	32,562	77,690
Intangible assets, accumulated amortization	$ 9,244	$ 155,062
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0005	$ 0.0005
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	67,588,492	67,008,492
Common stock, shares outstanding (in shares)	67,588,492	67,008,492