Revenue by Service Type, Customer Type and by Geographic Region (Details 2) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue, Net	$ 75,884,246	$ 78,420,864
North America [Member]
Segment Reporting Information [Line Items]
Revenue, Net	71,357,018	73,526,658
Europe [Member]
Segment Reporting Information [Line Items]
Revenue, Net	$ 4,527,228	$ 4,894,206

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration