Consolidated Statement of Stockholders' Equity (Unaudited) - 3 months ended Sep. 30, 2017 - USD ($)	Class A Common Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Total
Balance, beginning at Jun. 30, 2017	$ 242,157	$ 225,492,252	$ 295,396	$ (196,308,636)	$ 29,721,169
Balance, beginning, shares at Jun. 30, 2017	24,215,733
Issuance of common stock for:
Exercise of warrants	$ 250	30,000			30,250
Exercise of warrants, shares	25,000
Employee Stock Purchase Plan	$ 71	19,009			19,080
Employee Stock Purchase Plan, shares	7,093
Reclassification of warrant liability upon exercise		34,500			34,500
Stock based compensation on stock options		92,241			92,241
Foreign currency translation adjustment			54,147		54,147
Net income				217,695	217,695
Balance, ending at Sep. 30, 2017	$ 242,478	$ 225,668,002	$ 349,543	$ (196,090,941)	$ 30,169,082
Balance, ending, shares at Sep. 30, 2017	24,247,826