Stock Options - Additional information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2013	Dec. 17, 2003	Dec. 31, 2000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expense	$ (54,834)
Stock Option 2003 Plan | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized to grant options		20,000,000
Number of options available to be issued		74,004
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price, description	The exercise price of each option may not be less than 100% of the fair market value of the common stock on the date of the grant (or 110% of the fair market value in the case of a grantee holding more than 10% of the outstanding stock of the Company). The aggregate fair market value (determined at the time of the grant) of stock for which an employee may exercise Incentive Stock Options under all plans of the company shall not exceed $1,000,000 per calendar year. If any employee shall have the right to exercise any options in excess of $100,000 during any calendar year, the options in excess of $100,000 shall be deemed to be Non-Statutory Stock Options, including prices, duration, transferability and limitations on exercise.
Stock Options | Stock Option 2003 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized to grant options			18,000,000
Number of options available to be issued	15,274,004
Number of option issued	22,725,996
Stock Options | Stock Option 2000 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized to grant options				1,500,000