Loans (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Allowance for loan losses:
Individually evaluated for impairment	$ 2,420	$ 1,491
Collectively evaluated for impairment	23,544	25,220
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	25,964	26,711
Loans:
Loans individually evaluated for impairment	64,899	71,286
Loans collectively evaluated for impairment	1,501,286	1,458,300
Loans acquired with deteriorated credit quality	291	504
Total ending loans balance	1,566,476	1,530,090
One to Four Family Residential Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	234	281
Collectively evaluated for impairment	2,564	3,225
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	2,798	3,506
Loans:
Loans individually evaluated for impairment	10,514	11,930
Loans collectively evaluated for impairment	181,870	189,348
Loans acquired with deteriorated credit quality	31	36
Total ending loans balance	192,415	201,314
Construction Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	119	75
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	119	75
Loans:
Loans individually evaluated for impairment	261	45
Loans collectively evaluated for impairment	40,108	19,251
Loans acquired with deteriorated credit quality	0	0
Total ending loans balance	40,369	19,296
Multi Family Residential Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,532	2,197
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	2,532	2,197
Loans:
Loans individually evaluated for impairment	865	1,626
Loans collectively evaluated for impairment	144,989	120,829
Loans acquired with deteriorated credit quality	0	0
Total ending loans balance	145,854	122,455
Commercial Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	1,837	1,070
Collectively evaluated for impairment	11,247	11,632
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	13,084	12,702
Loans:
Loans individually evaluated for impairment	40,960	46,053
Loans collectively evaluated for impairment	636,481	630,534
Loans acquired with deteriorated credit quality	231	436
Total ending loans balance	677,672	677,023
Commercial Loan [Member]
Allowance for loan losses:
Individually evaluated for impairment	305	138
Collectively evaluated for impairment	5,241	6,187
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	5,546	6,325
Loans:
Loans individually evaluated for impairment	9,729	8,830
Loans collectively evaluated for impairment	377,591	376,007
Loans acquired with deteriorated credit quality	29	32
Total ending loans balance	387,349	384,869
Home Equity and Home Improvement [Member]
Allowance for loan losses:
Individually evaluated for impairment	44	2
Collectively evaluated for impairment	1,679	1,757
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	1,723	1,759
Loans:
Loans individually evaluated for impairment	2,499	2,678
Loans collectively evaluated for impairment	103,673	106,516
Loans acquired with deteriorated credit quality	0	0
Total ending loans balance	106,172	109,194
Consumer Loan [Member]
Allowance for loan losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	162	147
Acquired with deteriorated credit quality	0	0
Total ending allowance balance	162	147
Loans:
Loans individually evaluated for impairment	71	124
Loans collectively evaluated for impairment	16,574	15,815
Loans acquired with deteriorated credit quality	0	0
Total ending loans balance	$ 16,645	$ 15,939