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Property, Plant and Equipment (Detail Textuals) (USD $)	12 Months Ended
Property, Plant and Equipment (Detail Textuals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation	$ 461,000	$ 439,000
Depreciation and amortization	614,000	592,000
Buildings
Property, Plant and Equipment [Line Items]
Accumulated amortization	2,552,000	2,423,000
Amortization	130,000	130,000
Machinery and equipment
Property, Plant and Equipment [Line Items]
Amortization	$ 42,000	$ 84,000

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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