Short-Term Borrowings - Additional Information (Details) - Short-term Debt, Type [Domain] - USD ($)	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Total short-term borrowings	$ 635,000	$ 10,611,000
Line of credit	50.00%
Home equity lines of credit	$ 96,441,000
Available line of credit	48,220,000
Line of credit outstanding	0	0
Line of credit, capacity drawn	71,389,000
Federal Funds Purchased		10,000,000
Securities sold under repurchase agreements	635,000	$ 611,000
Unaffiliated Financial Institution
Short-term Debt [Line Items]
Line of credit outstanding	0
Line of credit, capacity drawn	$ 6,000,000