Borrowings and Subordinated Debentures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Advances from the Federal Home Loan Bank [Abstract]
Line of credit with federal home loan bank, amount	$ 229,900
Federal Home Loan Bank, advances, weighted average rate	1.35%	1.36%
Federal Home Loan Bank, advances, activity for year, average balance of agreements outstanding	$ 53,600	$ 59,400
Federal Home Loan Bank, advances, general debt obligations, disclosures, collateral pledged	32,000
Amount [Abstract]
Advances maturing in 2015		10,000
Advances maturing in 2016	19,000	10,000
Advances maturing in 2017	25,000	25,000
Advances maturing in 2018	10,000	10,000
Total FHLB borrowings	$ 54,000	$ 55,000
Rate [Abstract]
Advances maturing in 2015 (as a percent)		0.71%
Advances maturing in 2016 (as a percent)	0.85%	1.11%
Advances maturing in 2017 (as a percent)	1.46%	1.46%
Advances maturing in 2018 (as a percent)	2.01%	2.01%
Repayments of Long-term Debt	$ 10,456	$ 5,455
Market value of investment securities pledged as collateral	92,900
Line of credit maximum borrowing capacity	20,000	10,000
Outstanding line of credit	0	0
Notes payable [Member]
Rate [Abstract]
Notes payable with PNC Bank, prepayment penalty		402
Repayments of Long-term Debt		5,000
Notes payable [Member] | Notes Payable To PNCBank Due August2016 Member
Rate [Abstract]
Notes payable with PNC Bank	$ 2,000	2,400
Description of variable rate basis on notes payable	one month LIBOR
Interest rate on notes payable (as a percent)	0.57%
Notes payable [Member] | Notes PayableTo PNCBank Due January2018 Member
Rate [Abstract]
Notes payable with PNC Bank	$ 35,000	$ 35,000
Weighted average interest rate on other borrowings from PNC Bank (as a percent)	3.65%
Market value of investment securities pledged as collateral	$ 43,800
Notes payable [Member] | London Interbank Offered Rate (LIBOR) [Member] | Notes Payable To PNCBank Due August2016 Member
Rate [Abstract]
Trust preferred securities basis spread on variable rate (as a percent)	0.15%