Note 3 - Loans and Allowance for Loan Losses (Details) - Loan Portfolio by Credit Quality - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Rating:
Loans receivable	$ 497,147,333	$ 493,437,064
Pass [Member]
Rating:
Loans receivable	463,666,000	457,808,000
Special Mention [Member]
Rating:
Loans receivable	9,243,000	24,372,000
Substandard [Member]
Rating:
Loans receivable	23,635,000	10,797,000
Doubtful [Member]
Rating:
Loans receivable	603,000	460,000
Residential Portfolio Segment [Member] | Construction Loans [Member]
Rating:
Loans receivable	45,462,895	36,784,584
Residential Portfolio Segment [Member] | Construction Loans [Member] | Pass [Member]
Rating:
Loans receivable	37,383,000	27,370,000
Residential Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member]
Rating:
Loans receivable	0	6,522,000
Residential Portfolio Segment [Member] | Construction Loans [Member] | Substandard [Member]
Rating:
Loans receivable	8,080,000	2,893,000
Residential Portfolio Segment [Member] | Construction Loans [Member] | Doubtful [Member]
Rating:
Loans receivable	0	0
Residential Portfolio Segment [Member] | One-to-four Family Units [Member]
Rating:
Loans receivable	98,257,417	97,900,814
Residential Portfolio Segment [Member] | One-to-four Family Units [Member] | Pass [Member]
Rating:
Loans receivable	91,267,000	94,129,000
Residential Portfolio Segment [Member] | One-to-four Family Units [Member] | Special Mention [Member]
Rating:
Loans receivable	3,319,000	2,501,000
Residential Portfolio Segment [Member] | One-to-four Family Units [Member] | Substandard [Member]
Rating:
Loans receivable	3,671,000	1,271,000
Residential Portfolio Segment [Member] | One-to-four Family Units [Member] | Doubtful [Member]
Rating:
Loans receivable	0	0
Residential Portfolio Segment [Member] | Multi-family Units [Member]
Rating:
Loans receivable	41,603,670	33,785,959
Residential Portfolio Segment [Member] | Multi-family Units [Member] | Pass [Member]
Rating:
Loans receivable	41,604,000	33,786,000
Residential Portfolio Segment [Member] | Multi-family Units [Member] | Special Mention [Member]
Rating:
Loans receivable	0	0
Residential Portfolio Segment [Member] | Multi-family Units [Member] | Substandard [Member]
Rating:
Loans receivable	0	0
Residential Portfolio Segment [Member] | Multi-family Units [Member] | Doubtful [Member]
Rating:
Loans receivable	0	0
Commercial Real Estate Portfolio Segment [Member]
Rating:
Loans receivable	208,824,573	215,605,054
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Rating:
Loans receivable	198,230,000	207,311,000
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Rating:
Loans receivable	3,657,000	5,076,000
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Rating:
Loans receivable	6,937,000	2,758,000
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Rating:
Loans receivable	0	460,000
Commercial Portfolio Segment [Member]
Rating:
Loans receivable	81,006,897	92,114,216
Commercial Portfolio Segment [Member] | Pass [Member]
Rating:
Loans receivable	73,407,000	78,197,000
Commercial Portfolio Segment [Member] | Special Mention [Member]
Rating:
Loans receivable	2,267,000	10,273,000
Commercial Portfolio Segment [Member] | Substandard [Member]
Rating:
Loans receivable	4,730,000	3,644,000
Commercial Portfolio Segment [Member] | Doubtful [Member]
Rating:
Loans receivable	603,000	0
Consumer Portfolio Segment [Member] | Other Loans [Member]
Rating:
Loans receivable	21,991,881	17,246,437
Consumer Portfolio Segment [Member] | Other Loans [Member] | Pass [Member]
Rating:
Loans receivable	21,775,000	17,015,000
Consumer Portfolio Segment [Member] | Other Loans [Member] | Special Mention [Member]
Rating:
Loans receivable	0	0
Consumer Portfolio Segment [Member] | Other Loans [Member] | Substandard [Member]
Rating:
Loans receivable	217,000	231,000
Consumer Portfolio Segment [Member] | Other Loans [Member] | Doubtful [Member]
Rating:
Loans receivable	$ 0	$ 0