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CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2013
Apr. 30, 2012
ASSETS    
Cash and cash equivalents $ 10,769 $ 4,716
Accounts receivable, net 642 584
Prepaid expenses and other current assets 300 205
Total current assets 11,711 5,505
Restricted cash 190 188
Property and equipment, net 442 560
Goodwill 669 669
Total assets 13,012 6,922
LIABILITIES, REDEEMABLE COMMON STOCK AND STOCKHOLDERS' DEFICIT    
Accounts payable 1,101 1,676
Accrued liabilities 566 625
Deferred revenue 1,017 1,185
Total current liabilities 2,684 3,486
Warrant liability 993 555
Total liabilities 3,677 4,041
Commitments and contingencies      
Redeemable common stock; $0.001 par value; 31,133,333 and 12,533,333 contingently puttable common shares outstanding as of January 31, 2013 and April 30, 2012 16,936 8,159
Stockholders' equity:    
Preferred stock, $10 par value; 56,075 shares authorized; no shares issued and outstanding as of January 31, 2013 and April 30, 2012 0 0
Common stock, $.001 par value; 125,000,000 shares authorized, including redeemable common stock, 38,855,003 and 37,740,345 shares is sued and 35,618,767 and 34,529,000 shares outstanding as of January 31, 2013 and April 30, 2012, respectively 39 38
Treasury stock, at cost, 3,236,000 common shares as of January 31, 2013 and April 30, 2012 (1,252) (1,252)
Additional paid-in capital 23,136 21,204
Accumulated deficit (29,425) (25,143)
Accumulated other comprehensive loss (99) (125)
Total stockholders' deficit (7,601) (5,278)
Total liabilities, redeemable common stock and stockholders' deficit $ 13,012 $ 6,922