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Business Segment Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets
Property and equipment additions	$ 53	$ 73
Depreciation and Amortization	414	318
Identifiable Assets	114,095		94,104
Engineered Equipment Technology and Parts [Member]
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets
Property and equipment additions	37	20
Depreciation and Amortization	283	161
Identifiable Assets	100,610		60,516
Contracting / Services [Member]
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets
Property and equipment additions	10	16
Depreciation and Amortization	52	56
Identifiable Assets	5,990		8,055
Component Parts [Member]
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets
Property and equipment additions	6	27
Depreciation and Amortization	46	49
Identifiable Assets	5,736		5,573
Corporate [Member]
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets
Property and equipment additions	0	10
Depreciation and Amortization	33	52
Identifiable Assets	$ 1,759		$ 19,960

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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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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