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Consolidated Balance Sheets (unaudited) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 3,081 $ 5,943
Other current assets 184 269
Total current assets 3,265 6,212
Property and equipment, net 33 66
Other assets 164 224
Total assets 3,462 6,502
Current liabilities:    
Accounts payable 119 260
Accrued compensation and employee benefits 80 111
Accrued expenses and other liabilities 63 350
Deferred rent, current portion 24 33
Total current liabilities 286 754
Deferred rent, net of current portion    16
Total liabilities 286 770
Commitments and contingencies      
Stockholders' equity (deficit):    
Common stock, $0.001 par value; 100 million shares authorized; 14,619,598 and 12182999 shares issued and outstanding at September 30, 2012 and December 31, 2011, respectively 15 12
Additional paid-in capital 70,315 69,394
Deficit accumulated during the development stage (67,154) (63,674)
Total stockholders' equity (deficit) 3,176 5,732
Total liabilities and stockholders' equity (deficit) $ 3,462 $ 6,502