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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
Intangible Assets (Narrative) (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,336,000		$ 1,364,000
Amortization of intangible assets	30,000us-gaap_AmortizationOfIntangibleAssets	0us-gaap_AmortizationOfIntangibleAssets
Developed Technology Rights, Placed in Service [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	400,000
Impairment of intangible assets		100,000
Developed Technology Rights, Placed in Service [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	3 years
Developed Technology Rights, Placed in Service [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	5 years
Developed Technology Rights, Not Placed in Service [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,100,000