Summary of Significant Accounting Policies and Nature of Operations (Details)	12 Months Ended
	Dec. 31, 2016 type_of_lease shares	Dec. 31, 2015 shares	Nov. 04, 2008 shares
Significant Accounting Policies
Common stock, share issued (in shares) | shares	144,322,280	144,322,280	7,991,449
Loans placed on nonaccrual status when past due term (days)	90 days
Interest accrual period (days)	120 days
Consecutive payment period for accrual status	6 months
Number of types of leases offered to customers | type_of_lease	2
Minimum
Significant Accounting Policies
Intangible assets amortized period	3 years
Maximum
Significant Accounting Policies
Intangible assets amortized period	40 years
Premises | Minimum
Significant Accounting Policies
Estimated useful life	10 years
Premises | Maximum
Significant Accounting Policies
Estimated useful life	50 years
Furniture, fixtures and equipment | Minimum
Significant Accounting Policies
Estimated useful life	3 years
Furniture, fixtures and equipment | Maximum
Significant Accounting Policies
Estimated useful life	8 years