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Revenue by Service Type, Customer Type and by Geographic Region (Details 2) - USD ($) | 12 Months Ended
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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

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- Definition 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. + References 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 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition 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. + References No definition available. + Details
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Balance Type: | na
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |