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Revenue Recognition and Sales Returns Reserves (Tables)
 6 Months Ended
Jun. 30, 2012
REVENUE RECOGNITION AND SALES RETURN RESERVES: [Abstract]  
An analysis of the reserve for sales
An analysis of the reserve for sales returns follows:
 
Six Months Ended
June 30,
 
2012
 
2011
Balance at beginning of year
$
1,429,598

 
$
2,663,648

 
 
 
 
Provision:
 

 
 
Related to current period sales
—

 
52,487

Related to prior period sales
(100,000
)
 
—

 
(100,000
)
 
52,487

Returns:
 
 
 
Related to current period sales
—

 
—

Related to prior period sales
(109,787
)
 
(464,682
)
 
(109,787
)
 
(464,682
)
Balance at end of quarter
$
1,219,811

 
$
2,251,453