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Inventories
9 Months Ended
Sep. 30, 2013
Inventories [Abstract]  
Inventories
8.
Inventories

Inventories are carried at the lower of cost or market, determined on the first-in, first-out (FIFO) method.

Inventories consisted of the following:

 
September 30,
2013
 
December 31,
2012
 
 
 
 
Raw materials
 
$
1,900,000
  
$
1,384,000
 
Work in process
  
473,000
   
404,000
 
Finished goods
  
1,765,000
   
1,387,000
 
 
 
$
4,138,000
  
$
3,175,000