XML 44 R31.htm IDEA: XBRL DOCUMENT v3.7.0.1
STOCKHOLDERS’ EQUITY - Summary of number of price-reduced and price-retained warrants (Detail)
Jun. 30, 2017
$ / shares
shares
Series C Warrant [Member] | Number of Warrant Shares Repriced [Member]  
Class of Warrant or Right [Line Items]  
Number of Warrant Shares | shares 313,750
Series C Warrant [Member] | Pre-reduced Price [Member]  
Class of Warrant or Right [Line Items]  
Price $ 6.00
Series C Warrant [Member] | Post-reduced Price [Member]  
Class of Warrant or Right [Line Items]  
Price $ 4.00
Series D Warrant [Member] | Number of Warrant Shares Repriced [Member]  
Class of Warrant or Right [Line Items]  
Number of Warrant Shares | shares 312,500
Series D Warrant [Member] | Pre-reduced Price [Member]  
Class of Warrant or Right [Line Items]  
Price $ 9.00
Series D Warrant [Member] | Post-reduced Price [Member]  
Class of Warrant or Right [Line Items]  
Price $ 4.00
Series F Warrant [Member] | Number of Warrant Shares Repriced [Member]  
Class of Warrant or Right [Line Items]  
Number of Warrant Shares | shares 292,500
Series F Warrant [Member] | Pre-reduced Price [Member]  
Class of Warrant or Right [Line Items]  
Price $ 7.20
Series F Warrant [Member] | Post-reduced Price [Member]  
Class of Warrant or Right [Line Items]  
Price $ 4.00