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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, 2019
Dec. 31, 2018
Dec. 31, 2017
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 13,277 $ 18,212 $ 19,992
Allocation 100.00% 100.00%  
Expected employer contribution to pension plan $ 0    
Expected future benefit payments [Abstract]      
2020 892    
2021 794    
2022 563    
2023 598    
2024 975    
2025 - 2029 5,745    
Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 10,183 $ 15,062  
Level II [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets 3,094 3,150  
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 $ 924 $ 5,057  
Allocation 7.00% 27.80%  
Cash and Cash Equivalents [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 924 $ 5,057  
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 $ 5,084 $ 4,891  
Allocation 38.30% 26.80%  
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%    
Equity Securities [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 5,084 $ 4,891  
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  
Mutual Funds and ETF's [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 4,175 $ 5,114  
Allocation 31.40% 28.10%  
Mutual Funds and ETF's [Member] | Level I [Member]      
Plan assets at fair value [Abstract]      
Fair value of plan assets $ 4,175 $ 5,114  
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 $ 3,094 $ 3,150  
Allocation 23.30% 17.30%  
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%    
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 3,094 3,150  
Corporate Bonds [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 $ 681 $ 610  
Allocation 5.10% 3.40%