Interest Rate Swaps (Details)	9 Months Ended
	Sep. 30, 2016 USD ($)
Interest Rate Swap
Derivatives and other information
Notional amount	$ 50,510,000
Interest Rate Swap | Cash Flow Hedges
Derivatives and other information
Notional amount	25,000,000
Derivative liability recorded in other liabilities	815,000
Net fair value	0
Derivative asset recorded in other assets	815,000
Changes in fair value of interest rate swaps	0
December 2019 Interest Rate Swaps | Cash Flow Hedges
Derivatives and other information
Derivative liability recorded in other liabilities	603,000
Trust Preferred Securities Subject to Mandatory Redemption | September 2015 Interest Rate Swaps | Cash Flow Hedges
Derivatives and other information
Amount hedged	10,000,000
Trust Preferred Securities Subject to Mandatory Redemption | December 2019 Interest Rate Swaps | Cash Flow Hedges
Derivatives and other information
Amount hedged	$ 15,000,000