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ACCOUNTS RECEIVABLE
 6 Months Ended
Jun. 30, 2011
ACCOUNTS RECEIVABLE [Abstract]  
ACCOUNTS RECEIVABLE [Text Block]
5.    ACCOUNTS RECEIVABLE

Accounts receivable, net of allowances, consisted of the following at June 30, 2011 and December 31, 2010 (in thousands):

   
June 30,
2011
   
December 31,
2010
Accounts receivable
 
$
113,786
     
$
118,320
 
Less:
                 
   Allowance for doubtful accounts
   
(1,968
)
     
(3,051
)
   Allowance for sales returns and rebates
   
(13,432
)
     
(14,098
)
   
$
98,386
     
$
101,171
 

The accounts receivable balances at June 30, 2011 and December 31, 2010 excluded approximately $9.0 million and $16.1 million, respectively, for large solution sales and certain distributor sales that were invoiced, but for which revenues had not yet been recognized and payments were not then due.