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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On August 1, 2018, the Bank received an $8.5 million payoff of a significant non-accruing classified energy relationship. Assuming this payoff had occurred on June 30, 2018, pro forma Classified Assets to Bank Capital would have been reduced to 47.9% from 52.9% and energy loans as a percentage of total loans would have decreased from 14.5% to 13.8%.