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Commitments and Contingencies (Narrative) (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 01, 2015 USD ($)	Sep. 30, 2015 USD ($) ft²	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) ft² loan	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Commitments and Contingencies [Line Items]
Royalty expense		$ 423	$ 356	$ 1,321	$ 925
Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Letter of credit to be issued to landlord	$ 1,250
Minimum [Member]
Commitments and Contingencies [Line Items]
Royalty rates				0.75%
Royalty payments, quarterly		50		$ 50
Royalty agreement term				3 years
Maximum [Member]
Commitments and Contingencies [Line Items]
Letter of credit required to landlord				$ 1,250
Royalty rates				5.00%
Royalty payments, quarterly		$ 2,000		$ 2,000
Royalty agreement term				20 years
Office, Manufacturing, Warehouse Facilities, And Equipment [Member]
Commitments and Contingencies [Line Items]
Operating leases expire at various terms				Dec. 31, 2030
Mason Lease [Member]
Commitments and Contingencies [Line Items]
Lease term period				15 years
Number of renewal options | loan				3
Lease renewal option period				5 years
Initial annual base rent				$ 1,353
Lease rate increase, percentage		2.00%		2.00%
Area of lease | ft²		92		92
Project cost included in the construction of building				$ 13,507		$ 3,941
Mason Lease [Member] | Leasehold Improvements [Member]
Commitments and Contingencies [Line Items]
Leases payable, amount		$ 750		$ 750

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Lease term period.

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Letter Of Credit Required

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Letters of credit issued amount.

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Number Of Lease Renewal Options

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Operating lease area.

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Operational lease payable.

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Percentage of increase in annual rent during initial lease term.

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Royalty agreement term.

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Royalty rate.

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The aggregate costs related to construction and development services during the reporting period.

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-Name Accounting Standards Codification



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Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

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Term of the lessor's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

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The amount the entity has committed to make for future royalty guarantees.

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