Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Finite Lived Intangible Assets [Line Items]
Goodwill	$ 10,050,000	$ 9,410,000
Amortization of intangible assets	644,000
Adjustment of goodwill	640,000
Increase in stock options and warrants of share holders holders equity due to adjustment on goodwill	640,000
Core Deposits
Finite Lived Intangible Assets [Line Items]
Core deposit intangible	$ 2,763,000	2,763,000
Accelerated method for amortization	8 years
Amortization of intangible assets	$ 644,000	$ 0