Investment Securities - Summary of Available for Sale Securities (Detail) - USD ($)		Dec. 31, 2015		Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Cost				$ 704,173
Gains in Accumulated Other Comprehensive Income				117,263
Estimated Fair Value (Level 1 and 2 Inputs)		$ 4,901,267		821,436
Estimated Fair Value (Level 1 and 2 Inputs)		802,500
Cost		6,825,415
Losses in Accumulated Other Comprehensive Income		1,121,648
Investment Securities		5,703,767		821,436
Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Cost		5,981,464	[1]	704,173
Gains in Accumulated Other Comprehensive Income				117,263
Losses in Accumulated Other Comprehensive Income		(1,080,197)
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Cost		843,951
Losses in Accumulated Other Comprehensive Income		41,451
Debt Securities | Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost		843,951
Losses in Accumulated Other Comprehensive Income		41,451
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost				704,173
Gains in Accumulated Other Comprehensive Income				117,263
Quoted Prices in Active Markets (Level 1 and 2 Inputs) [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value (Level 1 and 2 Inputs)				821,436
Investment Securities		5,703,767
Quoted Prices in Active Markets (Level 1 and 2 Inputs) [Member] | Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value (Level 1 and 2 Inputs)		4,901,267		821,436
Quoted Prices in Active Markets (Level 1 and 2 Inputs) [Member] | Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value (Level 1 and 2 Inputs)		802,500
Quoted Prices in Active Markets (Level 1 and 2 Inputs) [Member] | Debt Securities | Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value (Level 1 and 2 Inputs)		802,500
Quoted Prices in Active Markets (Level 1 and 2 Inputs) [Member] | Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value (Level 1 and 2 Inputs)				$ 821,436
Common Stock [Member] | Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Cost	[1]	5,981,464
Losses in Accumulated Other Comprehensive Income		(1,080,197)
Common Stock [Member] | Quoted Prices in Active Markets (Level 1 and 2 Inputs) [Member] | Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Value (Level 1 and 2 Inputs)		$ 4,901,267

[1] The cost basis in the common stock investment is net of an other-than-temporary impairment charge of approximately $60,000 charged to earnings through investment income in the consolidated statements of operations.