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Equity Instruments (Details 2) - $ / shares | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
Number of Warrants |  |  |  |
Number of Warrants Outstanding, Beginning Balance | 286,049 | 110,108 | 444 |
Number of Warrants, Warrants issued in connection with the August 2017 private offering | 5,920,002 |  |  |
Number of Warrants, Warrants issued to underwriters in connection with the August 2017 private offering | 394,669 |  |  |
Number of Warrants, Warrants issued to placement agents for convertible promissory notes |  |  | 1,115 |
Number of Warrants, Warrants issued to investors in connection with the registered offering |  | 301,014 | 86,667 |
Number of Warrants, Warrants issued to placement agents for convertible promissory notes |  |  | 1,129 |
Number of Warrants, Warrants issued to placement agents for the registered offering |  | 20,077 | 5,474 |
Number of Warrants, Warrants issued to convertible note holders who converted May 5, 2016 |  |  | 15,279 |
Number of Warrants, Issuance of settlement warrants to initial investors |  | 4,402 |  |
Number of Warrants, Warrants exercised |  | (149,552) |  |
Number of Warrants Outstanding, Ending Balance | 6,600,720 | 286,049 | 110,108 | 444
Weighted Average Exercise Price |  |  |  |
Weighted Average Exercise Price, Outstanding Beginning Balance | $ 50.29 | $ 124.02 | $ 1,087.20 |
Weighted Average Exercise Price, Warrants issued in connection with the August 2017 private offering | 3.60 |  |  |
Weighted Average Exercise Price, Warrants issued to underwriters in connection with the August 2017 private offering | 3.60 |  |  |
Weighted Average Exercise Price, Warrants issued to placement agents for convertible promissory notes |  |  | 156.00 |
Weighted Average Exercise Price, Warrants issued to investors in connection with the registered offering |  | 37.20 | 120.00 |
Weighted Average Exercise Price, Warrants issued to placement agents for convertible promissory notes |  |  | 96.00 |
Weighted Average Exercise Price, Warrants issued to placement agents for the registered offering |  | 15.00 | 120.00 |
Weighted Average Exercise Price, Warrants issued to convertible note holders who converted May 5, 2016 |  |  | 120.00 |
Weighted Average Exercise Price, Issuance of settlement warrants to initial investors |  | 80.00 |  |
Weighted Average Exercise Price, Warrants exercised |  | 15.00 |  |
Weighted Average Exercise Price, Outstanding Ending Balance | $ 5.62 | $ 50.29 | $ 124.02 | $ 1,087.20
Weighted Average Remaining Contractual Life in Years |  |  |  |
Weighted Average Remaining Contractual Life in Years, Outstanding | 4 years 7 months 10 days | 4 years 2 months 23 days | 4 years 8 months 16 days | 2 years 11 months 1 day

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