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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' DEFICIT (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Loss [Member]
Balance at Apr. 30, 2011 $ 19 $ 37 $ (1,252) $ 17,784 $ (16,482) $ (68)
Balance (in shares) at Apr. 30, 2011   33,870,000 3,236,000      
Stock-based compensation 3,323   0 3,323 0 0
Exercise of options and warrants 98 1 0 97 0 0
Exercise of options and warrants (in shares)   534,000 0      
Issuance of restricted stock 0 0 0 0 0 0
Issuance of restricted stock (in shares)   125,000 0      
Foreign currency translation adjustment (57) 0 0 0 0 (57)
Net loss (8,661) 0 0 0 (8,661) 0
Balance at Apr. 30, 2012 (5,278) 38 (1,252) 21,204 (25,143) (125)
Balance (in shares) at Apr. 30, 2012   34,529,000 3,236,000      
Stock-based compensation 2,376 0 0 2,376 0 0
Exercise of options and warrants 0 0 0 0 0 0
Exercise of options and warrants (in shares)   0 0      
Issuance of restricted stock 0 0 0 0 0 0
Issuance of restricted stock (in shares)   50,000 0      
Issuance of Anti-Dilutive Cause 1 1 0 0 0 0
Issuance of Anti-Dilutive Cause (in shares)   1,064,658 0      
Foreign currency translation adjustment 25 0 0 0 0 25
Net loss (6,330) 0 0 0 (6,330) 0
Balance at Apr. 30, 2013 $ (9,206) $ 39 $ (1,252) $ 23,580 $ (31,473) $ (100)
Balance (in shares) at Apr. 30, 2013   35,643,658 3,236,000