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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 Income (Loss) [Member]
Noncontrolling Interests [Member]
Class A Common Stock [Member]
Class B Common Stock [Member]
Balance at Apr. 30, 2010 $ 50,296 $ 281,899 $ (231,077) $ (785) $ 0 $ 249 $ 10
Balance (in shares) at Apr. 30, 2010           24,944,000 988,000
Net income (loss) 38,428   38,428        
Other comprehensive income (loss) 1,163     1,163      
Issuances of Class A common stock 596 589       7  
Issuances of Class A common stock, shares           645,000  
Stock-based compensation and related severance expense 3,504 3,504          
Balance at Apr. 30, 2011 93,987 285,992 (192,649) 378   256 10
Balance (in shares) at Apr. 30, 2011           25,589,000 988,000
Net income (loss) (77,592)   (77,586)   (6)    
Other comprehensive income (loss) (2,330)     (2,330)      
Issuances of Class A common stock 239 235       4  
Issuances of Class A common stock, shares           402,000  
Stock-based compensation and related severance expense 1,855 1,855          
Contributions from noncontrolling interest holders 1,806       1,806    
Other 266 266          
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 income (loss) (54,463)   (54,142)   (321)    
Other comprehensive income (loss) 1,360     1,360      
Issuances of Class A common stock 2,840 2,828       12  
Issuances of Class A common stock, shares           1,171,000  
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 2,516 2,516          
Contributions from noncontrolling interest holders 2,687       2,687    
Other 96 96          
Balance at Apr. 30, 2013 $ 15,451 $ 335,857 $ (324,377) $ (592) $ 4,166 $ 387 $ 10
Balance (in shares) at Apr. 30, 2013           38,662,000 988,000