XML 52 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
Inventories
3 Months Ended
Mar. 31, 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:
 
March 31,
December 31,
2013
2012
 
 
Raw materials
$
1,613,000
$
1,384,000
Work in process
657,000
404,000
Finished goods
1,376,000
1,387,000
$
3,646,000
$
3,175,000