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Related Party Transactions - Additional Information (Detail) - USD ($)		3 Months Ended	6 Months Ended
	Apr. 06, 2015	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Related Party Transaction [Line Items]
Due to Related Parties, Current		$ 82,817	$ 82,817	$ 111,133
Energy Related Inventory, Natural Gas in Storage		201,000	201,000	$ 98,000
Allowance for Loan and Lease Losses, Write-offs		$ 0	$ 9,000
NIL Funding [Member]
Related Party Transaction [Line Items]
Short-term Non-bank Loans and Notes Payable	$ 5,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Debt Instrument, Maturity Date	Oct. 03, 2015
Ms. Zucker [Member]
Related Party Transaction [Line Items]
Stock Issued During Period, Shares, New Issues			940,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		8.96%	8.96%
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Due to Related Parties, Current		$ 83,000	$ 83,000		$ 21,000