| Foreclosed Real Estate (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Real Estate Properties [Table Text Block] | At year end, foreclosed real estate is summarized below: 
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- References No definition available. 
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- Definition Tabular disclosure of real estate properties and units in those properties that are included in the discussion of the nature of an entity's operations. No definition available. 
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