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SELECTED STATEMENT OF OPERATIONS DATA (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenues, Total $ 20,209 $ 18,913 $ 19,886
Product Line A [Member]
     
Revenues, Total 15,707 14,804 15,717
Product Line B [Member]
     
Revenues, Total $ 4,502 $ 4,109 $ 4,169