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Regulatory Capital (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Parent Company [Member]    
Total Capital    
Total Capital $ 59,737 $ 55,223
Total Capital (to risk-weighted assets) ratio 14.20% 14.30%
Minimum amount of capital for adequacy purposes $ 33,600 $ 30,948
Minimum amount of capital for adequacy purposes, ratio 8.00% 8.00%
Common equity Tier 1 capital (to risk weighted assets)    
Common equity Capital $ 54,532  
Common equity Capital ratio 13.00%  
Minimum amount of Common equity Capital for adequacy purposes $ 18,900  
Minimum amount of Common equity Capital for adequacy purposes, ratio 4.50%  
Tier 1 Capital (to risk-weighted assets)    
Tier 1 Capital $ 54,532 $ 50,562
Tier 1 Capital (to risk-weighted assets) ratio 13.00% 13.10%
Minimum amount of Tier 1 Capital for adequacy purposes $ 16,800 $ 21,016
Minimum amount of Tier 1 Capital for adequacy purposes, ratio 4.00% 4.00%
Tier 1 Leverage Capital (to average assets)    
Tier 1 Capital $ 54,532 $ 50,562
Tier 1 Capital (to average assets) ratio 9.70% 9.60%
Minimum amount of Tier 1 Capital for adequacy purposes $ 22,434 $ 21,016
Minimum amount of Tier 1 Capital for adequacy purposes, ratio 4.00% 4.00%
ChoiceOne Bank [Member]    
Total Capital    
Total Capital $ 55,723 $ 52,664
Total Capital (to risk-weighted assets) ratio 13.30% 13.60%
Minimum amount of capital for adequacy purposes $ 33,470 $ 30,881
Minimum amount of capital for adequacy purposes, ratio 8.00% 8.00%
Minimum Capital required to be well-capitalized $ 41,837 $ 38,601
Minimum Capital required to be well-capitalized, ratio 10.00% 10.00%
Common equity Tier 1 capital (to risk weighted assets)    
Common equity Capital $ 51,574  
Common equity Capital ratio 12.30%  
Minimum amount of Common equity Capital for adequacy purposes $ 18,827  
Minimum amount of Common equity Capital for adequacy purposes, ratio 4.50%  
Minimum Common equity Capital required to be well-capitalized $ 27,194  
Minimum Common equity Capital required to be well-capitalized, ratio 6.50%  
Tier 1 Capital (to risk-weighted assets)    
Tier 1 Capital $ 51,574 $ 48,665
Tier 1 Capital (to risk-weighted assets) ratio 12.30% 12.60%
Minimum amount of Tier 1 Capital for adequacy purposes $ 16,735 $ 15,441
Minimum amount of Tier 1 Capital for adequacy purposes, ratio 4.00% 4.00%
Minimum Tier 1 Capital required to be well-capitalized $ 25,102 $ 23,161
Minimum Tier 1 Capital required to be well-capitalized, ratio 6.00% 6.00%
Tier 1 Leverage Capital (to average assets)    
Tier 1 Capital $ 51,574 $ 48,665
Tier 1 Capital (to average assets) ratio 9.20% 9.30%
Minimum amount of Tier 1 Capital for adequacy purposes $ 22,350 $ 20,971
Minimum amount of Tier 1 Capital for adequacy purposes, ratio 4.00% 4.00%
Minimum Tier 1 Capital required to be well-capitalized $ 27,937 $ 26,214
Minimum Tier 1 Capital required to be well-capitalized, ratio 5.00% 5.00%