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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Description of Business, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($) country	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) country	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) application
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Unrealized gains on derivative financial instruments	$ (1,858,182)	$ 0	$ (1,097,056)	$ 0
Foreign currency translation adjustment	$ (952,438)	$ 0	$ (584,085)	$ 0
Number of apps added \| application					2
Number of countries in which entity operates (more than) \| country	100		100
Business Acquisition, Contingent Consideration [Line Items]
Cumulative effect adjustment					$ 16,475
Significant Unobservable Inputs (Level 3)
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration liability					5,000,000
The New Lenders and Agent \| Term credit facility
Business Acquisition, Contingent Consideration [Line Items]
Outstanding under term loan facility	$ 48,800,000		$ 48,800,000		56,300,000
Retained earnings
Business Acquisition, Contingent Consideration [Line Items]
Cumulative effect adjustment					$ 16,475
Reclassification
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Unrealized gains on derivative financial instruments			1,700,000
Foreign currency translation adjustment			$ 1,700,000
Two Customers \| Revenue \| Customer concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage			49.00%
Four Customers \| Revenue \| Customer concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage				46.00%
Three Customers \| Accounts receivable \| Customer concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage			51.00%
Five Customers \| Accounts receivable \| Customer concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage					61.00%
Accounting Standards Update 2014-09 (Topic 606) \| Retained earnings
Business Acquisition, Contingent Consideration [Line Items]
Cumulative effect adjustment					$ 20,000