Loans and the Allowance for Loan Losses (Details) - Allowance for loan and lease losses (USD $)	Sep. 30, 2014	Jul. 01, 2014	Jan. 01, 2014	Dec. 31, 2013	Sep. 30, 2013	Jul. 01, 2013	Jan. 01, 2013
Allowance for loan and lease losses:
Allowance for loan and lease losses, individually evaluated for impairment	$ 323,000			$ 415,000
Allowance for loan and lease losses, collectively evaluated for impairment	11,795,000			9,918,000
Allowance for loan and lease losses, total	12,118,000	10,825,000	10,333,000	10,333,000	10,194,000	10,202,000	10,237,000
Loans Receivable
Loans Receivable, individually evaluated for impairment	7,890,000			17,925,000
Loans Receivable, collectively evaluated for impairment	2,407,992,000			942,679,000
Acquired with deteriorated credit quality	11,352,000
Loans Receivable, Total	2,427,235,000			960,604,000
Commercial Portfolio Segment [Member]
Allowance for loan and lease losses:
Allowance for loan and lease losses, individually evaluated for impairment				300,000
Allowance for loan and lease losses, collectively evaluated for impairment	2,478,000			1,398,000
Allowance for loan and lease losses, total	2,478,000	2,142,000	1,698,000	1,698,000	1,714,000	2,422,000	2,424,000
Loans Receivable
Loans Receivable, individually evaluated for impairment	68,000			1,121,000
Loans Receivable, collectively evaluated for impairment	463,187,000			228,567,000
Acquired with deteriorated credit quality	7,255,000
Loans Receivable, Total	470,510,000			229,688,000
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan and lease losses:
Allowance for loan and lease losses, individually evaluated for impairment	323,000			115,000
Allowance for loan and lease losses, collectively evaluated for impairment	6,699,000			5,631,000
Allowance for loan and lease losses, total	7,022,000	5,741,000	5,746,000	5,746,000	5,788,000	5,333,000	5,323,000
Loans Receivable
Loans Receivable, individually evaluated for impairment	5,983,000			14,826,000
Loans Receivable, collectively evaluated for impairment	1,563,036,000			521,713,000
Acquired with deteriorated credit quality	1,835,000
Loans Receivable, Total	1,570,854,000			536,539,000
Construction Loans [Member]
Allowance for loan and lease losses:
Allowance for loan and lease losses, collectively evaluated for impairment	524,000			362,000
Allowance for loan and lease losses, total	524,000	504,000	362,000	362,000	369,000	318,000	313,000
Loans Receivable
Loans Receivable, collectively evaluated for impairment	141,844,000			42,722,000
Loans Receivable, Total	141,844,000			42,722,000
Residential Portfolio Segment [Member]
Allowance for loan and lease losses:
Allowance for loan and lease losses, collectively evaluated for impairment	1,052,000			990,000
Allowance for loan and lease losses, total	1,052,000	1,011,000	990,000	990,000	1,304,000	1,341,000	1,532,000
Loans Receivable
Loans Receivable, individually evaluated for impairment	1,733,000			1,858,000
Loans Receivable, collectively evaluated for impairment	237,391,000			148,713,000
Acquired with deteriorated credit quality	2,262,000
Loans Receivable, Total	241,387,000			150,571,000
Consumer Portfolio Segment [Member]
Allowance for loan and lease losses:
Allowance for loan and lease losses, collectively evaluated for impairment	5,000			146,000
Allowance for loan and lease losses, total	5,000	63,000	146,000	146,000	94,000	29,000	113,000
Loans Receivable
Loans Receivable, individually evaluated for impairment	106,000			120,000
Loans Receivable, collectively evaluated for impairment	2,534,000			964,000
Loans Receivable, Total	2,640,000			1,084,000
Unallocated Financing Receivables [Member]
Allowance for loan and lease losses:
Allowance for loan and lease losses, collectively evaluated for impairment	1,037,000			1,391,000
Allowance for loan and lease losses, total	$ 1,037,000	$ 1,364,000	$ 1,391,000	$ 1,391,000	$ 925,000	$ 759,000	$ 532,000