Summary of Significant Accounting Policies - Contract Balances (Details) |
3 Months Ended |
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Mar. 31, 2018
USD ($)
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| Summary of Significant Accounting Policies | |
| Net receivables, opening balance | $ 11,064,720 |
| Net receivables, closing balance | 11,766,829 |
| Increase/(decrease) | 702,109 |
| Contract Liabilities, Current, opening balance | 31,668 |
| Contract Liabilities, Current, closing balance | 32,136 |
| Increase/(decrease) | 468 |
| Contract Liabilities, Long-Term, opening balance | 68,631 |
| Contract Liabilities, Long-Term, closing balance | 61,985 |
| Increase/(decrease) | $ (6,646) |
| X | ||||||||||
- Definition Increase (Decrease) in Contract Receivable No definition available.
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| X | ||||||||||
- Definition Increase (Decrease) in Contract with Customer, Liability, Current No definition available.
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| X | ||||||||||
- Definition Increase (Decrease) in Contract with Customer, Liability, Noncurrent No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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