Quarterly report pursuant to Section 13 or 15(d)

A. SUMMARY OF ACCOUNTING POLICIES (Tables)

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A. SUMMARY OF ACCOUNTING POLICIES (Tables)
9 Months Ended
Sep. 30, 2013
Accounting Policies [Abstract]  
Product warranties

 

    September 30, 2013     December 31, 2012  
Beginning balance   $ 69,743     $ 104,423  
Warranty claims incurred     (5,926 )     (66,278 )
Provision charged to expense     21,126       31,598  
Ending balance   $ 84,943     $ 69,743