Accounts Receivable Due from Drilling Operator and Accounts Payable Due to Drilling Operator - Additional Information (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Accounts Payable And Accrued Liabilities Current [Line Items]
Drilling operator charges incurred, but not paid	$ 6,382,401	$ 2,698,302
ASD Credit Agreement [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Credit related to refund of prior drilling costs previously invoiced	$ 372,943	$ 637,667