Accounts Receivable Due from Non-Operators and Accounts Payable Due to Drilling Operator - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Payables And Accruals [Abstract]
Drilling operator charges incurred, but not paid	$ 2,698,302	$ 839,456
Credit related to refund of prior drilling costs previously invoiced	$ 637,667