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Marketable Securities (Details) (Corporate Bonds [Member], USD $)
Jun. 30, 2014
Dec. 31, 2013
Corporate Bonds [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Adjusted Cost $ 251,000 $ 250,000
Fair Value 252,000 243,000
Unrealized Holding Gain (loss) $ 1,000 $ (7,000)