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Product Warranties
 3 Months Ended
Mar. 31, 2013
Product Warranties [Abstract]  
Product Warranties
11. Product Warranties

The Company’s warranty reserve is to cover the products sold and is principally at our Effox and Aarding subsidiaries. The warranty accrual is based on historical claims information. The warranty reserve is reviewed and adjusted as necessary on a quarterly basis. Warranty accrual is not significant at the Company’s other operations due to the nature of the work which includes installation and testing. Accrued warranty expense is included in Accounts payable and accrued expenses on our condensed consolidated balance sheets, and the change in accrued warranty expense is summarized in the following table:

 

                 
$ in thousands   Three Months
Ended
March 31, 2013		     Three Months
Ended
March 31, 2012		  

Beginning balance

   $ 531     $ 431  

Provision

     36       64  

Payments

     (66 )      (42 ) 

Acquisition

     440       —    
   

 

 

    

 

 

  

Ending balance

   $ 941     $ 453