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Leases and Deferred Rent (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2014 USD ($) ft²	Dec. 31, 2013 USD ($) ft²	Aug. 31, 2013 ft²
Operating Leased Asset
Rent expense	$ 1,236	$ 909
Amortization of deferred rent	79	$ 110
Future minimum lease payments
2014	1,205
2015	923
2016	813
2017	647
2018	235
Total minimum lease payments	$ 3,823
Manufacturing Facility [Member] | Alachua, Florida
Operating Leased Asset
Area leased (sqft) | ft²	46,000
Lessee Leasing Arrangements, Operating Leases, Renewal Term	2 years
Office Building | Salt Lake City, Utah
Operating Leased Asset
Area leased (sqft) | ft²	31,000
Office Building | Austin, Texas
Operating Leased Asset
Area leased (sqft) | ft²	7,070	11,100
Office Building | Israel
Operating Leased Asset
Area leased (sqft) | ft²	4,700		1,000
Warehouse | Salt Lake City, Utah
Operating Leased Asset
Area leased (sqft) | ft²	40,000
Warehouse | Hong Kong
Operating Leased Asset
Area leased (sqft) | ft²	5,600
Warehouse | Israel | Minimum
Operating Leased Asset
Term of lease commitment	2 years
Warehouse | Israel | Maximum
Operating Leased Asset
Term of lease commitment	4 years

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