Note 6. Loans (Detail) - Credit Quality Rating for Loans (USD $)	Jun. 30, 2012	Dec. 31, 2011
Loans Receivable	$ 409,095,773	$ 404,398,141
Commercial Financing Receivable [Member] | Pass [Member]
Loans Receivable	17,531,044	17,834,473
Commercial Financing Receivable [Member] | Special Mention [Member]
Loans Receivable	1,451,651	1,192,000
Commercial Financing Receivable [Member] | Substandard [Member]
Loans Receivable	393,496	895,121
Commercial Financing Receivable [Member] | Doubtful [Member]
Loans Receivable	83,882	34,406
Commercial Financing Receivable [Member]
Loans Receivable	19,460,073	19,956,000
Commercial Real Estate Construction Financing Receivable [Member] | Pass [Member]
Loans Receivable	42,533,923	41,739,351
Commercial Real Estate Construction Financing Receivable [Member] | Special Mention [Member]
Loans Receivable		555,665
Commercial Real Estate Construction Financing Receivable [Member] | Substandard [Member]
Loans Receivable	2,893,634	4,140,419
Commercial Real Estate Construction Financing Receivable [Member] | Doubtful [Member]
Loans Receivable	162,563	165,032
Commercial Real Estate Construction Financing Receivable [Member]
Loans Receivable	45,590,120	46,600,467
Commercial Real Estate Other Receivable [Member] | Pass [Member]
Loans Receivable	269,488,835	270,211,863
Commercial Real Estate Other Receivable [Member] | Special Mention [Member]
Loans Receivable	12,902,206	10,912,130
Commercial Real Estate Other Receivable [Member] | Substandard [Member]
Loans Receivable	20,495,597	16,864,133
Commercial Real Estate Other Receivable [Member] | Doubtful [Member]
Loans Receivable	54,665	54,682
Commercial Real Estate Other Receivable [Member]
Loans Receivable	302,941,303	298,042,808
Multifamily Real Estate Receivable [Member] | Pass [Member]
Loans Receivable	37,485,240	34,959,277
Multifamily Real Estate Receivable [Member] | Special Mention [Member]
Loans Receivable	2,344,038	2,849,026
Multifamily Real Estate Receivable [Member] | Substandard [Member]
Loans Receivable	1,158,551	1,874,115
Multifamily Real Estate Receivable [Member] | Doubtful [Member]
Loans Receivable	116,448	116,448
Multifamily Real Estate Receivable [Member]
Loans Receivable	41,104,277	39,798,866
Current [Member] | Pass [Member]
Loans Receivable	364,588,790	361,193,743
Current [Member] | Special Mention [Member]
Loans Receivable	15,856,316	15,233,112
Current [Member] | Substandard [Member]
Loans Receivable	15,409,316	13,013,980
Current [Member] | Doubtful [Member]
Loans Receivable		165,032
Current [Member]
Loans Receivable	395,854,422	389,605,867
Past Due 30-59 Days [Member] | Pass [Member]
Loans Receivable	1,816,126	3,052,889
Past Due 30-59 Days [Member] | Special Mention [Member]
Loans Receivable	635,072
Past Due 30-59 Days [Member] | Substandard [Member]
Loans Receivable	883,568	644,399
Past Due 30-59 Days [Member] | Doubtful [Member]
Loans Receivable	162,563
Past Due 30-59 Days [Member]
Loans Receivable	3,497,329	3,697,288
Past Due 60-89 Days [Member] | Pass [Member]
Loans Receivable	337,825	320,762
Past Due 60-89 Days [Member] | Special Mention [Member]
Loans Receivable		275,709
Past Due 60-89 Days [Member] | Substandard [Member]
Loans Receivable	98,621	1,033,738
Past Due 60-89 Days [Member]
Loans Receivable	436,446	1,630,209
Past Due Over 90 Days [Member] | Pass [Member]
Loans Receivable	296,301	177,570
Past Due Over 90 Days [Member] | Special Mention [Member]
Loans Receivable	206,507
Past Due Over 90 Days [Member] | Substandard [Member]
Loans Receivable	8,549,773	9,081,671
Past Due Over 90 Days [Member] | Doubtful [Member]
Loans Receivable	254,995	205,536
Past Due Over 90 Days [Member]
Loans Receivable	9,307,576	9,464,777
Pass [Member]
Loans Receivable	367,039,042	364,744,964
Special Mention [Member]
Loans Receivable	16,697,895	15,508,821
Substandard [Member]
Loans Receivable	24,941,278	23,773,788
Doubtful [Member]
Loans Receivable	$ 417,558	$ 370,568