Fair Value of Financial Instruments - Summary of Fair Value of Assets and Liabilities by Level (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Liabilities
Total	$ 366,690
Available-for-Sale Securities
Available-for-Sale Debt Securities		$ 802,500
Available-for-Sale Equity Securities		4,901,267
Total Available-for-Sale Securities	0	5,703,767
Total		5,703,767
Interest Rate Swap
Liabilities
Derivative Liability	366,690
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available-for-Sale Securities
Available-for-Sale Equity Securities		4,901,267
Total Available-for-Sale Securities		4,901,267
Total		4,901,267
Significant Other Observable Inputs (Level 2) [Member]
Liabilities
Total	366,690
Available-for-Sale Securities
Available-for-Sale Debt Securities		802,500
Total Available-for-Sale Securities		802,500
Total		$ 802,500
Significant Other Observable Inputs (Level 2) [Member] \| Interest Rate Swap
Liabilities
Derivative Liability	$ 366,690

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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