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Statements of Cash Flows - USD ($)
 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net loss $ (8,424,440) $ (8,563,455) $ (10,304,490)
Adjustments to reconcile net loss to net cash used in operating activities      
Preferred shares issued as compensation 237,868 524,258 1,272,110
Common shares issued as compensation and for services 282,532 266,906 328,458
Common shares issued for debenture interest 0 60,274 607,178
Options granted as compensation 11,920 0 0
Warrants granted to Scientific Advisory Board 5,475 16,770 37,948
Warrants granted for severance agreement 0 53,500 0
Depreciation 687,640 671,789 654,685
Amortization 8,271 8,269 8,269
Change in fair value of derivative liability (179,745) (2,554,020) (1,696,318)
Amortization of debt discount convertible debentures 0 359,214 1,347,748
Loss on extinguishment of debt 0 1,348,247 332,524
Changes in operating assets and liabilities:      
Prepaid expenses (29,957) (50,091) 29,292
Other long term assets (21,025) 50,767 40,612
Accounts payable 86,554 87,553 39,262
Accounts payable - related parties 716,315 (233,227) (426,759)
Accrued expenses (184,178) 219,045 (1,598)
Deferred interest payable 0 (41,667) (166,667)
NET CASH USED IN OPERATING ACTIVITIES (6,802,770) (7,775,868) (7,897,746)
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchase of property and equipment (73,794) (241,822) (164,978)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Net proceeds from issuance of common stock and warrants 2,350,000 0 0
Repayment of Series B Debentures payable 0 0 (1,000,000)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES 2,350,000 0 (1,000,000)
NET CHANGE IN CASH AND CASH EQUIVALENTS (4,526,564) (8,017,690) (9,062,724)
Cash and cash equivalents at beginning of period 7,081,771 15,099,461 24,162,185
Cash and cash equivalents at end of period 2,555,207 7,081,771 15,099,461
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION:      
Interest paid 0 166,667 173,589
Income tax paid 0 0 0
NON CASH FINANCING AND INVESTING ACTIVITIES:      
Common stock issued for debenture payment 0 4,605,000 5,000,000
Common stock issued for deferred interest 0 125,000 0
Series A Preferred stock issued for Series C debenture 0 $ 314,343 $ 0
Stock warrants classified as a liability issued in connection with registered direct offering $ 1,527,259