Operating Matters and Liquidity - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended					1 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Aug. 09, 2013	May 17, 2013	Mar. 31, 2013	May 17, 2013 Common Stock [Member]	Jun. 30, 2014 Common Stock [Member]	Jun. 30, 2013 Common Stock [Member]
Line of Credit Facility [Line Items]
Accumulated deficit	$ (117,995,764)		$ (117,995,764)		$ (114,754,598)
Stock Issued During Period Shares New Issues				43,715,847						43,715,847
Proceeds from Issuance of Private Placement			0	12,000,000						12,000,000	12,000,000
Common Stock Shares Authorized	300,000,000		300,000,000		300,000,000			150,000,000	150,000,000
Class Of Warrant Or Right Exercisable Percentage Immediately								63.00%
Class Of Warrant Or Right Exercisable Percentage Subject To Shareholder Approval								37.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights								32,786,885
Increase In Common Stock Shares Authorized								300,000,000
Net Income Loss	(1,576,647)	(1,776,311)	(3,241,166)	(2,977,891)	7,100,000	5,100,000					0	0
Class of Warrant or Right, Exercise Price of Warrants or Rights								$ 0.2745		$ 0.2745
Additional Pro Rata Investment in Common Stock and Warrants			$ 5,000,000								$ 5,000,000