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Income Taxes (Details) - Reconciliation of effective income tax rate
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Reconciliation of effective income tax rate [Abstract]    
Federal statutory rate 35.00% 35.00%
State tax, net of federal benefit (6.10%) 0.60%
State tax credits and adjustments 1.80% (1.90%)
Change in cash surrender value of life insurance policies (185.10%) (9.00%)
Valuation allowance increase (decrease) 143.20% (23.60%)
Other, net (4.60%) 0.30%
Effective income tax rate (15.80%) 1.40%