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Nature of Operations and Summary of Significant Accounting Policies (Estimated Useful Lives Used To Compute Depreciation And Amortization) (Details) | 9 Months Ended
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Sep. 30, 2013
Equipment [Member] | Minimum [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 3 years
Equipment [Member] | Maximum [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 5 years
Demonstration Equipment [Member] | Minimum [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 3 years
Demonstration Equipment [Member] | Maximum [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 5 years
Furniture And Fixtures [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 7 years
Purchased Software [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 3 years
Leased Equipment [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 3 years
Leasehold Improvements [Member] |
Property Plant And Equipment [Line Items] |
Estimated useful life | 5 years

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration