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PARENT COMPANY AND REGULATORY RESTRICTIONS (Details 3) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Condensed Balance Sheets (Parenthetical)    
Preferred stock, par value (in dollars per share)      
Preferred stock, authorized shares 1,100,000 1,100,000
Preferred stock, issued shares 0 0
Preferred stock, outstanding shares 0 0
Common stock, par value (in dollars per share)      
Common stock, authorized shares 185,000,000 185,000,000
Common stock, issued shares 42,107,633 41,867,046
Common stock, outstanding shares 42,107,633 41,867,046
Parent company
    
Condensed Balance Sheets (Parenthetical)    
Preferred stock, par value (in dollars per share)      
Preferred stock, authorized shares 1,000,000 1,000,000
Preferred stock, issued shares 0 0
Preferred stock, outstanding shares 0 0
Common stock, par value (in dollars per share)      
Common stock, authorized shares 185,000,000 185,000,000
Common stock, issued shares 42,112,633 41,867,046
Common stock, outstanding shares 42,112,633 41,867,046