Loans (Details 6) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014 item	Sep. 30, 2013 item	Sep. 30, 2014 item	Sep. 30, 2013 item	Dec. 31, 2013
Loans
Recorded investment of troubled debt restructurings	$ 1,638,000		$ 1,638,000		$ 3,722,000
Troubled debt restructurings, nonaccrual loans	1,438,000		1,438,000		3,230,000
Troubled debt restructurings, accruing loans	200,000		200,000		492,000
Specific reserves	147,000		147,000		1,186,000
Additional amount of loan classified as a troubled debt restructurings			$ 0		$ 0
New loans modified as troubled debt restructurings	0	0	0	0
Default period contractually past due under modified terms			30 days
Number of defaults on troubled debt restructurings	0	0	0	0