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Nature of Operations (Detail Textuals) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Nature Of Operations [Line Items]        
Companys ownership in MTI micro outstanding common stock 47.60%      
Accumulated deficit $ (121,833) $ (122,183)    
Current available cash and cash equivalents $ 1,007 $ 289 $ 531 $ 1,669