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Summary of Significant Accounting Policies Intangible and Other Assets Narrative (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
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Dec. 31, 2012
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|
| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived intangible assets, net | $ 282 | |
| Amortization of Intangible Assets | 80 | 99 |
| Write-off intangible assets | 8 | 38 |
| Refundable deposits | 150 | 154 |
| Insurance Settlements Receivable, Current | 225 | |
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Patents [Member]
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| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived intangible assets, net | 62 | 111 |
| Finite-Lived Intangible Assets, Accumulated Amortization | 871 | 822 |
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Licensing Agreements [Member]
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| Finite-Lived Intangible Assets [Line Items] | ||
| Finite-Lived intangible assets, net | 110 | 60 |
| Finite-Lived Intangible Assets, Accumulated Amortization | $ 38 | $ 15 |