AMERICAN SUPERCONDUCTOR CORP /DE/ | 2012 | FY | 3


5. Accounts Receivable

Accounts receivable at March 31, 2012 and 2011 consisted of the following (in thousands):

    March 31,  
    2012     2011  
Accounts receivable (billed) $ 16,240   $ 10,938  
Accounts receivable (unbilled)   2,811     5,004  
Less: Allowance for doubtful accounts   (52 )   (683 )
Accounts receivable, net $ 18,999   $ 15,259  


amsc:AccountsReceivableDisclosureTextBlock