Acquired Loans Part 3 (Details) (USD $)	3 Months Ended
	Mar. 31, 2015 CreditRiskGrade	Mar. 31, 2014	Dec. 31, 2014
Allowance for loan loss [Abstract]
Balance, beginning	$ 12,059,000	$ 9,636,000
Provision for loan losses, acquired loans	347,000	63,000
Loans charged-off	(1,018,000)	676,000
Recoveries	449,000	165,000
Net (charge-offs) recoveries	(569,000)	841,000
Balance, ending	11,837,000	10,540,000
Number of individual credit risk grades	10
Nonaccrual loans not accounted for under FASB ASC Topic 310 30	1,800,000		1,100,000
Covered Loans [Member]
Allowance for loan loss [Abstract]
Balance, beginning	1,518,000	2,387,000
Provision for loan losses, acquired loans	(312,000)	(474,000)
Loans charged-off	(516,000)	(53,000)
Recoveries	41,000	(60,000)
Net (charge-offs) recoveries	(475,000)	(113,000)
Balance, ending	731,000	1,800,000
Noncovered Loans [Member]
Allowance for loan loss [Abstract]
Balance, beginning	10,541,000	7,249,000
Provision for loan losses, acquired loans	659,000	537,000
Loans charged-off	(502,000)	729,000
Recoveries	408,000	225,000
Net (charge-offs) recoveries	(94,000)	954,000
Balance, ending	$ 11,106,000	$ 8,740,000