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Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment at cost	$ 3,559		$ 3,559		$ 3,130
Less: accumulated depreciation	(2,747)		(2,747)		(2,674)
Property and equipment, net	812		812		456
Depreciation	79	$ 47	181	$ 139
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment at cost	1,409		$ 1,409		$ 1,289
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life			3 years		3 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life			15 years		15 years
Tooling [Member]
Property, Plant and Equipment [Line Items]
Property and equipment at cost	851		$ 851		$ 851
Tooling [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life			2 years		2 years
Tooling [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life			5 years		5 years
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment at cost	94		$ 94		$ 85
Useful life			5 years		5 years
Computer software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment at cost	581		$ 581		$ 378
Useful life			3 years		3 years
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment at cost	509		$ 509		$ 509
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment at cost	$ 115		$ 115		$ 18

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 360



-SubTopic 10



-Section 50



-Paragraph 1



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-Publisher SEC



-Name Regulation S-X (SX)



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-Section 02



-Paragraph 14



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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



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-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229



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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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



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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.

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