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Intangible Assets (Narrative) (Details) (USD $)	6 Months Ended
Intangible Assets (Narrative) (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets	$ 400,000	$ 400,000	$ 400,000
Amortization of intangible assets	$ 0	$ 0
Estimated useful life of finite-lived intangible assets	7 years

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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