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CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, except Share data
Total
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Loss [Member]
Noncontrolling Interest [Member]
Class A Common Stock [Member]
Class B Common Stock [Member]
Balance at Apr. 30, 2012 $ 18,231 $ 288,348 $ (270,235) $ (1,952) $ 1,800 $ 260 $ 10
Balance (in shares) at Apr. 30, 2012           25,991,000 988,000
Net loss (40,946)   (40,747)   (199)    
Other comprehensive income 1,333     1,333      
Issuances of Class A common stock 2,849 2,837       12  
Issuances of Class A common stock, shares           1,167,000  
Sale of Class A common stock, net 42,184 42,069       115  
Sale of Class A common stock, net (in shares)           11,500,000  
Stock-based compensation and related severance expense 1,840 1,840          
Contributions from noncontrolling interest holder 1,345       1,345    
Change in ownership of noncontrolling interest   258     (258)    
Other 99 99          
Balance at Jan. 31, 2013 $ 26,935 $ 335,451 $ (310,982) $ (619) $ 2,688 $ 387 $ 10
Balance (in shares) at Jan. 31, 2013           38,658,000 988,000