Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Additional Information (Detail)

Share-Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended											12 Months Ended			12 Months Ended							12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 2000 Stock Plan [Member]	Dec. 31, 2013 2007 Stock Plan [Member]	Dec. 31, 2013 First Anniversary [Member] 2000 Stock Plan [Member]	Dec. 31, 2013 Second Anniversary [Member] 2000 Stock Plan [Member]	Dec. 31, 2013 Third Anniversary [Member] 2000 Stock Plan [Member]	Dec. 31, 2013 Stock Options [Member]	Dec. 31, 2013 Employee Stock Options [Member]	Dec. 31, 2012 Employee Stock Options [Member]	Dec. 31, 2011 Employee Stock Options [Member]	Dec. 31, 2013 Non-Employee Stock Options [Member]	Dec. 31, 2012 Non-Employee Stock Options [Member]	Dec. 31, 2011 Non-Employee Stock Options [Member]	Dec. 31, 2013 Common Stock Award [Member]	Dec. 31, 2012 Common Stock Award [Member]	Dec. 31, 2013 JSOP Awards [Member]	Dec. 31, 2012 JSOP Awards [Member]	Dec. 31, 2010 JSOP Awards [Member]	Dec. 31, 2013 JSOP Awards [Member] Minimum [Member]	Dec. 31, 2013 JSOP Awards [Member] Maximum [Member]	Dec. 31, 2013 2012 JSOP [Member]	Dec. 31, 2012 2012 JSOP [Member]	Dec. 31, 2013 2012 JSOP [Member] First Quarter of 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 431,504	$ 339,780																				$ 279,484	$ 235,927
Options terms description			Options may be granted with different vesting terms from time to time but not more than 50% on or after the first anniversary, 25% on or after the second anniversary, and 25% on or after the third anniversary.
Percentage of vesting terms					50.00%	25.00%	25.00%
Expiration period			10 years	10 years
Percentage of issued ordinary share capital			15.00%	15.00%
Number of option to grant			14,355,591	14,355,591
Number of common stock outstanding			2,507,489	2,714,941					5,222,430	4,985,480	4,068,024	416,000	416,000
Options grant description				Option price of an incentive stock option granted to an employee or of a non-statutory stock option granted to any person who owns stock representing more than 10% of the total combined voting power of all classes of stock of the Company (or any parent or subsidiary) shall be no less than 110% of the fair market value per share on the date of grant. The option price of an incentive stock option granted to any other employee shall be no less than 100% of the fair market value per share on the date of grant.
Expected dividend yield								0.00%									0.00%
Forfeiture rate								0.00%
Options forfeited								2,000,000	2,011,671	23,009
Granted options to purchase common stock									2,304,000	960,000			416,000
Weighted average grand date fair value per share									$ 0.07	$ 0.91
Cash received form stock option exercises									2,090	709
Unrecognized stock-based compensation expenses									77,496						0
Weighted-average period									2 years			3 years
Granted options to purchase common stock									2,304,000			0	416,000		282,509	177,607
Options exercised									55,379	19,535
Option to purchase common stock vested												104,000
Options to purchase common stock remaining unvested									1,158,784	1,233,184		288,000
Unrecognized share based compensation expense												33,635										326,066
Grant date fair value															85,825.00	58,339.00
compensation expense related to common stock awards															85,825	58,339
Awards issued																		8,986,281	1,701,913
Range of share price																				$ 0.75	$ 2.50
Fair value of award																						853,889
compensation expense related to accelerated vesting																								$ 326,066