Business Combination - Centrix Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Assets acquired:
Intangible assets	$ 15,208	$ 17,192
Goodwill	$ 12,876	$ 12,876
Centrix Solutions, Inc. [Member]
Assets acquired:
Cash			$ 1,417
Accounts receivable			579
Other prepaid assets			42
Deferred solution and other costs			106
Property and equipment, net			156
Intangible assets			11,690
Goodwill			8,786
Total assets acquired			22,776
Liabilities assumed:
Accounts payable			46
Accrued liabilities and accrued compensation			267
Deferred revenue			1,483
Total liabilities assumed			1,796
Fair value of assets acquired and liabilities assumed			$ 20,980