Quarterly report pursuant to Section 13 or 15(d)

INVESTMENT SECURITIES (Maturity Distribution) (Details)

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INVESTMENT SECURITIES (Maturity Distribution) (Details) - USD ($)
Sep. 30, 2017
Dec. 31, 2016
Amortized Cost    
Due in one year or less $ 138,454,000  
Due after one through five years 253,590,000  
Total Investment Securities 511,009,000  
Market Value    
Due in one year or less 138,421,000  
Due after one through five years 252,720,000  
Total Investment Securities 510,846,000  
Amortized Cost    
Due in one year or less 63,439,000  
Due after one through five years 36,922,000  
Total Investment Securities 184,262,000 $ 177,365,000
Market Value    
Due in one year or less 63,370,000  
Due after one through five years 36,838,000  
Total Investment Securities 183,523,000 176,746,000
Mortgage-Backed Securities [Member]    
Amortized Cost    
Due without single maturity date 1,217,000  
Market Value    
Due without single maturity date 1,332,000  
U.S. Government Agency [Member]    
Amortized Cost    
Due without single maturity date 109,011,000  
Market Value    
Due without single maturity date 109,636,000  
Equity Securities [Member]    
Amortized Cost    
Due without single maturity date 8,737,000  
Market Value    
Due without single maturity date 8,737,000  
Mortgage-Backed Securities [Member]    
Amortized Cost    
Due without single maturity date 83,901,000  
Total Investment Securities 83,902,000 50,059,000
Market Value    
Due without single maturity date 83,315,000  
Total Investment Securities 83,315,000 49,451,000
U.S. Government Agency [Member]    
Amortized Cost    
Due without single maturity date 0  
Total Investment Securities 0 0
Market Value    
Due without single maturity date 0  
Total Investment Securities $ 0 $ 0