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FAIR VALUE DISCLOSURES (Additional Information) (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Mar. 31, 2015
Mar. 30, 2014
Dec. 31, 2013
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Mortgage servicing rights $ 3,400,000     $ 3,400,000          
Weighted average interest rate, residential mortgages (in hundredths)       3.97%          
Weighted average maturity of residential mortgages       19 years          
Prepayment Speed used in unobservable assumptions       181   212      
Discount rate used to estimate fair value (in hundredths)       9.30%   9.40%      
Subtotal 2,893,665,000     $ 2,893,665,000   $ 2,762,604,000      
Valuation allowance 44,816,000 $ 45,605,000 $ 45,605,000 44,816,000 $ 45,605,000 $ 46,262,000 $ 45,677,000 $ 46,137,000 $ 48,797,000
Recoveries 134,000   123,000 $ 257,000 214,000        
Market Value Price Variance Tolerance Percentage       3.00%          
Market Value Tolerable Value Individual Security Increase Decrease       $ 50,000          
Market Value Tolerable Value Increase Decrease       500,000          
Impaired Loans Fair Value Disclosure 75,000 263,000 263,000 $ 75,000 263,000        
Commercial Real Estates [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       0.00%          
Commercial Real Estates [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       50.00%          
Inventory Finished Goods [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       35.00%          
Inventory Finished Goods [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       65.00%          
Finished Goods [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       30.00%          
Finished Goods [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       60.00%          
Inventory Work In Process [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       50.00%          
Inventory Work In Process [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       100.00%          
Equipment [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       30.00%          
Equipment [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       70.00%          
Marketable Securities [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       10.00%          
Marketable Securities [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Percentage of discount from appraised value (in hundredths)       30.00%          
Impaired Loans [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Subtotal 7,700,000 16,500,000 16,500,000 $ 7,700,000 16,500,000        
Valuation allowance 2,200,000 4,100,000 4,100,000 2,200,000 4,100,000        
Recoveries 1,300,000 100,000   610,000 2,200,000        
Other Real Estate Owned [Member]                  
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.                  
Other Real Estate 147,000 376,000 376,000 147,000 376,000        
Real Estate Owned, Valuation Allowance $ 72,000 $ 113,000 113,000 $ 72,000 $ 113,000        
Real Estate Owned, Valuation Allowance, Provision     $ 41,000