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EMPLOYEE BENEFIT PLANS, Noncontributory Defined Benefit Pension Plan Fair Value of Plan Assets (Details) - Pension Plan [Member] - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 18,212 $ 19,992 $ 15,786
Allocation 100.00% 100.00%  
Expected employer contribution to pension plan $ 500    
Expected future benefit payments [Abstract]      
2019 7,863    
2020 1,238    
2021 1,080    
2022 531    
2023 559    
2024 - 2028 5,907    
Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 15,062 $ 15,935  
Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 3,150 4,057  
Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Cash and Cash Equivalents [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 5,057 $ 3,827  
Allocation 27.80% 19.10%  
Cash and Cash Equivalents [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 5,057 $ 3,827  
Cash and Cash Equivalents [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Cash and Cash Equivalents [Member] | Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Equity Securities [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 4,815 $ 6,018  
Allocation 26.80% 30.10%  
Equity Securities [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 4,891 $ 6,018  
Equity Securities [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Equity Securities [Member] | Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 0  
Equity Securities [Member] | Minimum [Member]      
Target Allocations of Assets [Abstract]      
Target plan asset allocations 50.00%    
Equity Securities [Member] | Maximum [Member]      
Target Allocations of Assets [Abstract]      
Target plan asset allocations 70.00%    
Mutual Funds and ETF's [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 5,114 $ 6,090  
Allocation 28.10% 30.50%  
Mutual Funds and ETF's [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 5,114 $ 6,090  
Mutual Funds and ETF's [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Mutual Funds and ETF's [Member] | Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Corporate Bonds [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 3,150 $ 3,469  
Allocation 17.30% 17.40%  
Corporate Bonds [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 0  
Corporate Bonds [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 3,150 3,469  
Corporate Bonds [Member] | Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 0  
Corporate Bonds [Member] | Minimum [Member]      
Target Allocations of Assets [Abstract]      
Target plan asset allocations 30.00%    
Corporate Bonds [Member] | Maximum [Member]      
Target Allocations of Assets [Abstract]      
Target plan asset allocations 50.00%    
Municipal Bonds [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 105  
Allocation 0.00% 0.50%  
Municipal Bonds [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 105  
U.S. Agency Securities [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 483  
Allocation 0.00% 2.40%  
U.S. Agency Securities [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 0  
U.S. Agency Securities [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 483  
U.S. Agency Securities [Member] | Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Certificates of Deposit [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 0  
Allocation 0.00% 0.00%  
Certificates of Deposit [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 0 $ 0  
Certificates of Deposit [Member] | Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Certificates of Deposit [Member] | Level III [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 0 0  
Common Stock [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 610 $ 684  
Allocation 3.40% 3.40%