Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Additional Information) (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Additional Information) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Jan. 31, 2015
Accounting Policies [Line Items]        
Unrecognized Tax Benefits Threshold Percentage 50.00%      
Advertising Expense $ 562,000 $ 477,000 $ 532,000  
Goodwill       $ 13,617,000
Metro Bancshares, Inc [Member]        
Accounting Policies [Line Items]        
Finite-Lived Intangible Assets, Remaining Amortization Period 7 years      
Goodwill $ 13,600,000      
Minimum [Member]        
Accounting Policies [Line Items]        
Property, Plant and Equipment, Useful Life 3 years      
Maximum [Member]        
Accounting Policies [Line Items]        
Property, Plant and Equipment, Useful Life 10 years      
Federal Reserve Bank [Member]        
Accounting Policies [Line Items]        
Cash Reserve Deposit Required and Made $ 26,600,000 $ 36,900,000