Software Development Costs (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Software Development Costs
Gross capitalized software costs	$ 8,652		$ 8,652		$ 6,501
Less: accumulated amortization	(4,388)		(4,388)		(3,151)
Software development costs, net	4,264		4,264		3,350
Capitalized software costs not yet subject to amortization	2,421		2,421		$ 911
Amortization expense	$ 426	$ 302	$ 1,237	$ 757

The carrying amount of capitalized computer software costs not yet subject to amortization.

No definition available.

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- Definition

For each balance sheet presented, the amount of accumulated amortization for internally developed computer software for long-term internal use.

+ References

No definition available.

+ Details

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- Definition

Amount before accumulated amortization of capitalized costs for internally developed computer software for long-term internal use.

+ References

No definition available.

+ Details

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- Definition

The carrying amount of costs for internally developed computer software for long-term internal use net of accumulated amortization as of the balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

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Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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