Loans (Details 4) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Recorded investment in impaired loans and the related specific allowance allocated
Period of current payments after which loans are returned to accrual status after a period of satisfactory payment performance			6 months
Unpaid contractual principal balance	$ 10,161,000		$ 10,161,000		$ 9,996,000
Total recorded investment in impaired loans	9,865,000		9,865,000		9,572,000
Recorded investment with no allowance	5,884,000		5,884,000		5,570,000
Recorded investment with allowance	3,981,000		3,981,000		4,002,000
Related allowance	288,000		288,000		201,000
Average recorded investment	9,791,000	9,836,000	9,629,000	9,741,000
Interest income recognized	90,000	51,000	342,000	239,000
Residential 1-4 family
Recorded investment in impaired loans and the related specific allowance allocated
Unpaid contractual principal balance	7,633,000		7,633,000		6,660,000
Total recorded investment in impaired loans	7,448,000		7,448,000		6,499,000
Recorded investment with no allowance	3,973,000		3,973,000		3,689,000
Recorded investment with allowance	3,475,000		3,475,000		2,810,000
Related allowance	212,000		212,000		94,000
Average recorded investment	7,210,000	6,895,000	6,944,000	6,810,000
Interest income recognized	60,000	29,000	193,000	164,000
Home equity and lines of credit
Recorded investment in impaired loans and the related specific allowance allocated
Unpaid contractual principal balance	677,000		677,000		548,000
Total recorded investment in impaired loans	587,000		587,000		359,000
Recorded investment with no allowance	334,000		334,000		104,000
Recorded investment with allowance	253,000		253,000		255,000
Related allowance	64,000		64,000		66,000
Average recorded investment	546,000	535,000	438,000	686,000
Interest income recognized	9,000	5,000	17,000	25,000
Commercial real estate
Recorded investment in impaired loans and the related specific allowance allocated
Average recorded investment		37,000		37,000
SBA
Recorded investment in impaired loans and the related specific allowance allocated
Unpaid contractual principal balance	1,825,000		1,825,000		2,755,000
Total recorded investment in impaired loans	1,804,000		1,804,000		2,681,000
Recorded investment with no allowance	1,567,000		1,567,000		1,764,000
Recorded investment with allowance	237,000		237,000		917,000
Related allowance	8,000		8,000		34,000
Guaranteed portions of impaired loans	1,500,000		1,500,000		2,300,000
Average recorded investment	2,009,000	2,332,000	2,219,000	2,178,000
Interest income recognized	21,000	17,000	132,000	49,000
Consumer
Recorded investment in impaired loans and the related specific allowance allocated
Unpaid contractual principal balance	26,000		26,000		33,000
Total recorded investment in impaired loans	26,000		26,000		33,000
Recorded investment with no allowance	10,000		10,000		13,000
Recorded investment with allowance	16,000		16,000		20,000
Related allowance	4,000		4,000		7,000
Average recorded investment	26,000	37,000	28,000	30,000
Interest income recognized				$ 1,000