Condensed Consolidated Statement of Changes in Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interests [Member]	Total
Balance at Mar. 31, 2018	$ 1,663,307	$ 154,731,044	$ (149,891,272)	$ (2,082,011)	$ 3,568,636	$ 7,989,704
Balance, shares at Mar. 31, 2018	166,330,733
Net loss			(690,707)		383,341	(307,366)
Foreign currency translation adjustment				(76,329)		(76,329)
Exercise of common stock options	$ 5,032	210,984				216,016
Exercise of common stock options, shares	503,166
Restricted share grants	$ 11,000	(11,000)
Restricted share grants, shares	1,100,000
Common stock purchased under employee stock purchase plan	$ 419	40,540				40,959
Common stock purchased under employee stock purchase plan, shares	41,902
Stock-based compensation		490,485				490,485
Balance at Jun. 30, 2018	$ 1,679,758	155,462,053	(150,581,979)	(2,158,340)	3,951,977	8,353,469
Balance, shares at Jun. 30, 2018	167,975,801
Balance at Mar. 31, 2018	$ 1,663,307	154,731,044	(149,891,272)	(2,082,011)	3,568,636	7,989,704
Balance, shares at Mar. 31, 2018	166,330,733
Net loss						(308,690)
Foreign currency translation adjustment						$ (85,261)
Exercise of common stock options, shares						1,129,166
Balance at Sep. 30, 2018	$ 1,685,540	156,186,890	(150,798,115)	(2,167,272)	4,166,789	$ 9,073,832
Balance, shares at Sep. 30, 2018	168,553,992
Balance at Jun. 30, 2018	$ 1,679,758	155,462,053	(150,581,979)	(2,158,340)	3,951,977	8,353,469
Balance, shares at Jun. 30, 2018	167,975,801
Net loss			(216,136)		214,812	(1,324)
Foreign currency translation adjustment				(8,932)		(8,932)
Exercise of common stock options	$ 6,260	227,141				233,401
Exercise of common stock options, shares	626,000
Restricted shares forfeited	$ (478)	478
Restricted shares forfeited, shares	(47,809)
Stock-based compensation		497,219				497,219
Balance at Sep. 30, 2018	$ 1,685,540	$ 156,186,890	$ (150,798,115)	$ (2,167,272)	$ 4,166,789	$ 9,073,832
Balance, shares at Sep. 30, 2018	168,553,992