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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ 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
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-Topic 360
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-Section 50
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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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.

+ References

No definition available.

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Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property and Equipment
Property and equipment, gross	$ 11,204	$ 5,490
Less: accumulated depreciation	(4,795)	(3,528)
Property and equipment, net	6,409	1,962
Depreciation and amortization expense	$ 5,115	3,933	$ 1,817
Computer hardware and purchased software
Property and Equipment
Property, Plant and Equipment, Useful Life	3 years
Property and equipment, gross	$ 1,789	961
Office furniture and equipment
Property and Equipment
Property, Plant and Equipment, Useful Life	5 years
Property and equipment, gross	$ 5,671	4,088
Leasehold improvements
Property and Equipment
Property and equipment, gross	3,744	441
Property and equipment
Property and Equipment
Depreciation and amortization expense	$ 1,267	$ 969	$ 883
Minimum \| Leasehold improvements
Property and Equipment
Property, Plant and Equipment, Useful Life	5 years
Maximum \| Leasehold improvements
Property and Equipment
Property, Plant and Equipment, Useful Life	11 years