Note 3 - Loans and Allowance for Loan Losses - Loans By Category (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loans receivable	$ 544,398,300	$ 497,147,333
Allowance for loan losses	(5,742,449)	(5,811,940)	$ (6,589,000)	$ (7,802,000)
Deferred loan fees/costs, net	(382,211)	(333,486)
Net loans	538,273,640	491,001,907
Residential Portfolio Segment [Member] \| One To Four Family Units [Member]
Loans receivable	106,410,559	98,257,417
Allowance for loan losses	(856,000)	(821,000)	(900,000)	(997,000)
Residential Portfolio Segment [Member] \| Multi Family Units [Member]
Loans receivable	48,483,523	41,603,670
Allowance for loan losses	(206,000)	(177,000)	(127,000)	(209,000)
Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans receivable	40,912,307	45,462,895
Allowance for loan losses	(1,377,000)	(1,246,000)	(1,330,000)	(2,387,000)
Commercial Real Estate Portfolio Segment [Member]
Loans receivable	249,580,873	208,824,573
Commercial Portfolio Segment [Member]
Loans receivable	75,404,732	81,006,897
Allowance for loan losses	(1,168,000)	(1,382,000)	(1,954,000)	(1,519,000)
Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans receivable	23,606,306	21,991,881
Allowance for loan losses	$ (337,000)	$ (223,000)	$ (185,000)	$ (272,000)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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