Annual report pursuant to Section 13 and 15(d)

3. Summary of Significant Accounting Policies (Details)

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3. Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]    
Derivative liability - warrants $ 0 $ 55
Level 1
    
Defined Benefit Plan Disclosure [Line Items]    
Derivative liability - warrants 0 0
Level 2
    
Defined Benefit Plan Disclosure [Line Items]    
Derivative liability - warrants 0 0
Level 3
    
Defined Benefit Plan Disclosure [Line Items]    
Derivative liability - warrants $ 0 $ 55