Note 4: Loans and Allowance for Loan Losses (Detail) - Loan Portfolio by Credit Quality (USD $)	Sep. 30, 2012	Dec. 31, 2011
Real Estate Construction [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	$ 32,665,000	$ 27,646,000
Real Estate Construction [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	6,860,000	6,372,000
Real Estate Construction [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	5,057,000	10,894,000
Real Estate Construction [Member] | Doubtful [Member]
Rating:
Loan Balance by Credit Quality	693,000
Real Estate Construction [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	45,275,000	44,912,000
Real Estate Construction [Member]
Rating:
Loan Balance by Credit Quality	45,275,141	44,912,049
Real Estate Commercial [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	146,483,000	162,019,000
Real Estate Commercial [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	4,362,000	20,406,000
Real Estate Commercial [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	14,938,000	12,431,000
Real Estate Commercial [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	165,783,000	194,856,000
Real Estate Commercial [Member]
Rating:
Loan Balance by Credit Quality	165,782,870	194,856,374
One to Four Family Units [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	94,368,000	91,503,000
One to Four Family Units [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	1,983,000	3,214,000
One to Four Family Units [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	3,795,000	3,314,000
One to Four Family Units [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	100,146,000	98,031,000
One to Four Family Units [Member]
Rating:
Loan Balance by Credit Quality	100,146,009	98,030,718
Multi-Family Units [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	43,015,000	42,668,000
Multi-Family Units [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	1,767,000	498,000
Multi-Family Units [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	315,000
Multi-Family Units [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	45,097,000	43,166,000
Multi-Family Units [Member]
Rating:
Loan Balance by Credit Quality	45,096,600	43,165,695
Commercial Loans [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	88,872,000	80,529,000
Commercial Loans [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	483,000	2,183,000
Commercial Loans [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	4,369,000	5,376,000
Commercial Loans [Member] | Doubtful [Member]
Rating:
Loan Balance by Credit Quality	128,000
Commercial Loans [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	93,852,000	88,088,000
Commercial Loans [Member]
Rating:
Loan Balance by Credit Quality	93,852,000	88,088,000
Consumer and Other Loans [Member] | Pass [Member]
Rating:
Loan Balance by Credit Quality	19,295,000	19,522,000
Consumer and Other Loans [Member] | Special Mention [Member]
Rating:
Loan Balance by Credit Quality	98,000	309,000
Consumer and Other Loans [Member] | Substandard [Member]
Rating:
Loan Balance by Credit Quality	1,023,000	927,000
Consumer and Other Loans [Member] | Total [Member]
Rating:
Loan Balance by Credit Quality	20,416,000	20,758,000
Consumer and Other Loans [Member]
Rating:
Loan Balance by Credit Quality	20,416,044	20,758,027
Pass [Member]
Rating:
Loan Balance by Credit Quality	424,698,000	423,887,000
Special Mention [Member]
Rating:
Loan Balance by Credit Quality	15,553,000	32,982,000
Substandard [Member]
Rating:
Loan Balance by Credit Quality	29,497,000	32,942,000
Doubtful [Member]
Rating:
Loan Balance by Credit Quality	821,000
Total [Member]
Rating:
Loan Balance by Credit Quality	$ 470,569,000	$ 489,811,000