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Statement of Stockholders' Equity - 9 months ended Mar. 31, 2017 - USD ($)
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Balance at Jun. 30, 2016 $ 10,085,253 $ 374 $ 56,646,304 $ (46,561,425)
Balance (in shares) at Jun. 30, 2016   3,741,944    
Lincoln Park Capital stock issuance, net of $24,247 in issuance costs 607,234 $ 23 607,211 0
Lincoln Park Capital stock issuance, net of $24,247 in issuance costs (in shares)   226,190    
Issuance of restricted stock 655,416 $ 100 655,316 0
Issuance of restricted stock (in shares)   1,000,000    
Common stock issued to executives 509,996 $ 14 509,982 0
Common stock issued to executives (in shares)   142,457    
Issuance of warrants to initial investors 596,434 $ 0 596,434 0
Issuance of common stock, net of $997,865 in cash issuance costs 3,671,581 $ 574 3,671,007  
Issuance of common stock, net of $997,865 in cash issuance costs (in shares)   5,734,975    
Warrants issued in connection with equity financing 3,470,646 $ 0 3,470,646 0
Warrants issued in connection with equity financing to the placement agents for the over-allotment option 172,629 0 172,629 0
Warrants issued in connection with equity financing to the placement agents, non-cash issuance costs 292,630 0 292,630 0
Warrant tender offer, net of $332,567 in issuance costs 1,910,714 $ 299 1,910,415 0
Warrant tender offer, net of $332,567 in issuance costs (in shares)   2,991,041    
Warrant amendments 64,690   64,690  
Stock-based compensation 2,241,989 $ 0 2,241,989 0
Net loss (15,757,916) 0 0 (15,757,916)
Balance at Mar. 31, 2017 $ 8,521,296 $ 1,384 $ 70,839,253 $ (62,319,341)
Balance (in shares) at Mar. 31, 2017   13,836,607