Loans and the Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010
Period-end allowance balance attributed to loans:
Allowance Balances, Individually evaluated for impairment	$ 2,168		$ 2,314
Allowance Balances, Collectively evaluated for impairment	1,424		1,540
Total allowance for loan losses	3,592	4,574	3,854	3,221	3,203	3,065
Loan balance, individually evaluated for impairment	10,888		10,791
Loan balance, collectively evaluated for impairment	231,927		227,262
Loan Ending Balances	242,815		238,053
One-to-four family residential
Period-end allowance balance attributed to loans:
Allowance Balances, Individually evaluated for impairment	291		320
Allowance Balances, Collectively evaluated for impairment	791		808
Total allowance for loan losses	1,082	1,251	1,128	1,076	1,073	1,199
Loan balance, individually evaluated for impairment	4,147		3,744
Loan balance, collectively evaluated for impairment	150,685		149,320
Loan Ending Balances	154,832		153,064
All other mortgage loans
Period-end allowance balance attributed to loans:
Allowance Balances, Individually evaluated for impairment	1,834		1,941
Allowance Balances, Collectively evaluated for impairment	528		606
Total allowance for loan losses	2,362	3,140	2,547	1,840	1,967	1,603
Loan balance, individually evaluated for impairment	6,694		6,955
Loan balance, collectively evaluated for impairment	67,980		65,251
Loan Ending Balances	74,674		72,206
Commercial business loans
Period-end allowance balance attributed to loans:
Allowance Balances, Individually evaluated for impairment	43		53
Allowance Balances, Collectively evaluated for impairment	100		116
Total allowance for loan losses	143	174	169	295	158	253
Loan balance, individually evaluated for impairment	47		92
Loan balance, collectively evaluated for impairment	11,167		10,434
Loan Ending Balances	11,214		10,526
Consumer loans
Period-end allowance balance attributed to loans:
Allowance Balances, Individually evaluated for impairment
Allowance Balances, Collectively evaluated for impairment	5		10
Total allowance for loan losses	5	9	10	10	5	8
Loan balance, individually evaluated for impairment
Loan balance, collectively evaluated for impairment	2,095		2,257
Loan Ending Balances	2,095		2,257
Unallocated
Period-end allowance balance attributed to loans:
Allowance Balances, Individually evaluated for impairment
Allowance Balances, Collectively evaluated for impairment
Total allowance for loan losses						$ 2