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Segment Reporting (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of Total Assets [Abstract]
Total assets	$ 177,652	$ 222,748
MRO [Member]
Summary of Total Assets [Abstract]
Total assets	167,160	194,422
OEM [Member]
Summary of Total Assets [Abstract]
Total assets	10,066	10,336
Segment total [Member]
Summary of Total Assets [Abstract]
Total assets	177,226	204,758
Corporate [Member]
Summary of Total Assets [Abstract]
Total assets	41	17,580
Discontinued operations [Member]
Summary of Total Assets [Abstract]
Total assets	$ 385	$ 410

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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