Note 4: Loans and Allowance for Loan Losses (Detail) - Loan Portfolio by Credit Quality (USD $)	Jun. 30, 2012	Dec. 31, 2011
Real Estate Construction [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	$ 30,134,000	$ 27,646,000
Real Estate Construction [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	8,089,000	6,372,000
Real Estate Construction [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	9,820,000	10,894,000
Real Estate Construction [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	48,043,000	44,912,000
Real Estate Construction [Member]
Rating:
Loan Balance by Credit Quality	48,043,307	44,912,049
Real Estate Commercial [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	155,922,000	162,019,000
Real Estate Commercial [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	3,068,000	20,406,000
Real Estate Commercial [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	17,028,000	12,431,000
Real Estate Commercial [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	176,018,000	194,856,000
Real Estate Commercial [Member]
Rating:
Loan Balance by Credit Quality	176,017,859	194,856,374
One to Four Family Units [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	93,605,000	91,503,000
One to Four Family Units [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	1,992,000	3,214,000
One to Four Family Units [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	2,859,000	3,314,000
One to Four Family Units [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	98,456,000	98,031,000
One to Four Family Units [Member]
Rating:
Loan Balance by Credit Quality	98,456,130	98,030,718
Multi-Family Units [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	45,007,000	42,668,000
Multi-Family Units [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	492,000	498,000
Multi-Family Units [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	317,000
Multi-Family Units [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	45,816,000	43,166,000
Multi-Family Units [Member]
Rating:
Loan Balance by Credit Quality	45,815,849	43,165,695
Commercial Loans [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	85,594,000	80,529,000
Commercial Loans [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	586,000	2,183,000
Commercial Loans [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	6,481,000	5,376,000
Commercial Loans [Member] | Doubtful [Member]
Rating:
Loan Balance by Credit Quality	4,130,000
Commercial Loans [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	96,791,000	88,088,000
Commercial Loans [Member]
Rating:
Loan Balance by Credit Quality	96,790,395	88,088,580
Consumer and Other Loans [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	19,589,000	19,522,000
Consumer and Other Loans [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	101,000	309,000
Consumer and Other Loans [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	963,000	927,000
Consumer and Other Loans [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	20,653,000	20,758,000
Consumer and Other Loans [Member]
Rating:
Loan Balance by Credit Quality	20,653,059	20,758,027
Pass [Member]
Rating:
Loan Balance by Credit Quality	429,851,000	423,887,000
Special Mention [Member]
Rating:
Loan Balance by Credit Quality	14,328,000	32,982,000
Substandard [Member]
Rating:
Loan Balance by Credit Quality	37,468,000	32,942,000
Doubtful [Member]
Rating:
Loan Balance by Credit Quality	4,130,000
Total [Member]
Rating:
Loan Balance by Credit Quality	$ 485,777,000	$ 489,811,000