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Property and Equipment - Summary of Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
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Dec. 31, 2013
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|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 988 | $ 966 |
| Less accumulated depreciation | (834) | (766) |
| Total | 154 | 200 |
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Machinery and equipment [Member]
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| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 273 | 278 |
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Tooling and molds [Member]
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| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 585 | 557 |
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Furniture and fixtures [Member]
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| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 130 | $ 131 |