Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Detail)

v2.4.0.8
Fair Value Measurements (Detail) (USD $)
Jun. 30, 2013
Jun. 30, 2012
Fair Value Measurements [Line Items]    
Warrant derivative liabilities $ 143,000 $ 4,943,000
Fair Value, Inputs, Level 1
   
Fair Value Measurements [Line Items]    
Warrant derivative liabilities 0 0
Fair Value, Inputs, Level 2
   
Fair Value Measurements [Line Items]    
Warrant derivative liabilities 0 0
Fair Value, Inputs, Level 3
   
Fair Value Measurements [Line Items]    
Warrant derivative liabilities $ 143,000 $ 4,943,000