XML 76 R94.htm IDEA: XBRL DOCUMENT v2.4.0.6
EMPLOYEE EQUITY INCENTIVE PLAN (Stock-Based Compensation Expense) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
EMPLOYEE EQUITY INCENTIVE PLAN [Abstract]      
Share-based compensation expense $ 4,464,497 $ 4,579,522 $ 5,000,256
Unrecognized compensation cost related to unvested restricted shares 2,640,491    
2013 1,549,546    
2014 751,532    
2015 $ 339,413    
Stock-based compensation , weighted average period 2 years 3 months 22 days