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Derivative Liability - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Jun. 30, 2015
Jun. 30, 2014
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2015
Derivative [Line Items]              
Warrants maturity term 5 years 5 years     5 years 5 years  
Estimated fair value of the outstanding warrant liabilities     $ 26,000       $ 126,000
Change in fair value of warrant liabilities     $ 38,000 $ 30,000      
Exercised derivative liabilities     38,234 8,647      
Warrants [Member]              
Derivative [Line Items]              
Estimated fair value of the outstanding warrant liabilities             $ 100,000
Warrants [Member] | Maximum [Member]              
Derivative [Line Items]              
Estimated fair value of the outstanding warrant liabilities     $ 100,000