Quarterly report pursuant to Section 13 or 15(d)

Fair Value Per Share and Aggregate (Detail)

v2.4.0.6
Fair Value Per Share and Aggregate (Detail) (USD $)
Dec. 31, 2012
Jun. 30, 2012
Accounting Policies [Line Items]    
Issued Warrants 2,907,347 2,400,328
Total Fair Value in Aggregate $ 2,302,000 $ 4,943,000
June 2012 Warrants [Member]
   
Accounting Policies [Line Items]    
Issued Warrants 562,551  
Fair Value Per Share $ 0.79  
Total Fair Value in Aggregate 446,000 1,158,000
July 2012 Warrants [Member]
   
Accounting Policies [Line Items]    
Issued Warrants 338,013  
Fair Value Per Share $ 0.78  
Total Fair Value in Aggregate 265,000 0
August 2012 Warrants [Member]
   
Accounting Policies [Line Items]    
Issued Warrants 120,719  
Fair Value Per Share $ 0.79  
Total Fair Value in Aggregate 96,000 0
Advisory Agreement Warrants [Member]
   
Accounting Policies [Line Items]    
Issued Warrants 1,837,777  
Fair Value Per Share $ 0.79  
Total Fair Value in Aggregate 1,457,000 3,785,000
October 2012 Warrants [Member]
   
Accounting Policies [Line Items]    
Issued Warrants 48,287  
Fair Value Per Share $ 0.80  
Total Fair Value in Aggregate $ 38,000 $ 0