Number of customers accounted for more than ten percentage of revenue.

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Revenue recognition.

+ References

No definition available.

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Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Revenue - Additional Information (Detail)	3 Months Ended		9 Months Ended
Revenue - Additional Information (Detail)	Sep. 30, 2018 USD ($) Customer	Sep. 30, 2017 USD ($) Customer	Sep. 30, 2018 USD ($) Customer	Sep. 30, 2017 USD ($) Customer	Dec. 31, 2017 USD ($)
Revenue Recognition [Line Items]
Revenue	$ 25,920,215	$ 31,930,550	$ 78,544,764	$ 115,840,966
Deferred contract costs	61,200		61,200		$ 136,139
Deferred revenue	88,991		88,991		$ 309,089
Selling, General and Administrative Expense [Member]
Revenue Recognition [Line Items]
Amortized deferred contract costs	$ 53,750		157,500	110,000
Reduction to Income [Member]
Revenue Recognition [Line Items]
Amortized deferred contract costs		$ 18,070	$ 36,139	$ 54,208
Revenue [Member] \| Customer Concentration Risk [Member]
Revenue Recognition [Line Items]
Number of customer \| Customer	3	3	3	3
Percentage of revenue	48.60%	52.00%	50.10%	57.80%
Management Fee Contract [Member]
Revenue Recognition [Line Items]
Revenue				$ 78,145
Management Fees Gross Billings [Member]
Revenue Recognition [Line Items]
Revenue				$ 2,173,022