10% Convertible Redeemable Preferred Stock - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2011	Dec. 31, 2014	Mar. 31, 2014
Temporary Equity [Line Items]
Warrant exercise price	$ 10
10% Convertible preferred stock, unamortized discount	$ 0		$ 0	$ 221,386
Common stock shares required to be issued if the remaining holders of Preferred Stock elect to convert	9,400,000
Stock Issued During Period, Shares, Issued for Services	1,409,638
Dividends, Common Stock, Cash	$ 169,157
10% Convertible Preferred Stock
Temporary Equity [Line Items]
10% Convertible preferred stock, authorized	880,000	880,000	880,000
10% Convertible preferred stock, stated value	$ 10.00	$ 10
Warrant exercise price		$ 10
10% Convertible preferred stock, issued	682,998	759,773	682,998
10% Convertible preferred stock, gross proceeds from issuance		$ 7,597,730
Conversion rate at issuance		$ 2,100,000
Shares of stock called by warrants	58,352
Convertible Debt, Conversion Price		$ 1.00
Percentage of warrant outstanding		84.00%
Warrants Expiration Date	Dec. 31, 2015
10% Convertible Preferred Stock | Revised Conversion Terms Two
Temporary Equity [Line Items]
Convertible Debt, Conversion Price	$ 0.70
Preferred Stock, Redemption Date	Dec. 31, 2016
10% Convertible Preferred Stock | Revised Conversion Term Three
Temporary Equity [Line Items]
Convertible Debt, Conversion Price	$ 0.60
Preferred Stock
Temporary Equity [Line Items]
10% Convertible preferred stock, unamortized discount		$ 828,340
Preferred Stock Outstanding Holders	$ 6,079,980
Minimum
Temporary Equity [Line Items]
Minimum weighted average price of common stock for 60 consecutive trading days to convert preferred stock	$ 4.00