Preferred Stock and Warrants (Summary of Preferred Stock Terms) (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred Stock, Liquidation Value	$ 1,121	$ 2,871
Preferred Stock, Dividends		10.00%
Series A Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Liquidation Value	$ 212,625
Preferred Stock, Conversion Price	$ 10,303
Preferred stock, conversion Rate	0.00044%
Preferred stock, voting Rights	None
Preferred Stock, Conversion Period	Any time
Preferred Stock Liquidation Preference	$ 4.50
Series B Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Liquidation Value	$ 375,000
Preferred Stock, Conversion Price	$ 1,000
Preferred stock, conversion Rate	0.004%
Preferred stock, voting Rights	None
Preferred Stock, Dividends	10.00%	10.00%
Preferred Stock, Conversion Period	Any time
Preferred stock, cumulative and undeclared dividends in arrears	$ 539,413	$ 520,665
Preferred Stock Liquidation Preference	$ 4.00
Series C Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Liquidation Value	$ 115,000
Preferred Stock, Conversion Price	$ 600
Preferred stock, conversion Rate	0.005%
Preferred stock, voting Rights	None
Preferred Stock, Dividends	10.00%	10.00%
Preferred Stock, Conversion Period	Any time
Preferred stock, cumulative and undeclared dividends in arrears	$ 157,163	$ 151,413
Preferred Stock Liquidation Preference	$ 3.00
Series E Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Liquidation Value	$ 418,488
Preferred Stock, Conversion Price	$ 800.00
Preferred stock, conversion Rate	0.0275%
Preferred stock, voting Rights	Equal in all respects to holders of common shares
Preferred Stock, Dividends	10.00%	10.00%
Preferred Stock, Conversion Period	Any time
Preferred stock, cumulative and undeclared dividends in arrears	$ 578,639	$ 558,173
Preferred Stock Liquidation Preference	$ 22.00
Series D Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Liquidation Value	$ 525,000
Preferred Stock, Conversion Price	$ 1,000
Preferred stock, conversion Rate	0.01%
Preferred stock, voting Rights	None
Preferred Stock, Dividends	10.00%	10.00%
Preferred Stock, Conversion Period	Any time
Preferred stock, cumulative and undeclared dividends in arrears	$ 0	$ 660,000
Preferred Stock Liquidation Preference	$ 1,000