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v3.19.1

Liquidity (Details) | Dec. 31, 2018 USD ($)
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Liquidity [Line Items] |
Total Remaining Unsatisfied Performance Obligations | $ 97,657,379
Liquidity [Member] | Within 1 year [Member] |
Liquidity [Line Items] |
Total Remaining Unsatisfied Performance Obligations | 22,563,674
Liquidity [Member] | 1 to 2 years [Member] |
Liquidity [Line Items] |
Total Remaining Unsatisfied Performance Obligations | 54,639,417
Liquidity [Member] | Thereafter [Memebr] |
Liquidity [Line Items] |
Total Remaining Unsatisfied Performance Obligations | $ 20,454,288

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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045 + Details
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