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Property and Equipment - Summary of Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2014
|
Dec. 31, 2013
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|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 971 | $ 966 |
| Less accumulated depreciation | (806) | (766) |
| Total | 165 | 200 |
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Machinery and equipment [Member]
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| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 270 | 278 |
|
Tooling and molds [Member]
|
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| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 570 | 557 |
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Furniture and fixtures [Member]
|
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| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 131 | $ 131 |