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Note 4 - Loans (Details) - Loans Segregated by Class of Loans - USD ($) | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
Commercial and Agricultural |  |  |
Loans receivable | $ 758,635,595 | $ 746,093,809 | $ 751,218,462
Commercial and Agricultural Portfolio Segment [Member] | Commercial [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 47,781,689 | 50,960,265 | 48,107,448
Commercial and Agricultural Portfolio Segment [Member] | Agricultural [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 19,193,497 | 16,689,444 | 10,665,938
Real Estate Portfolio Segment [Member] | Commercial [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 346,262,033 | 332,230,847 | 341,783,538
Real Estate Portfolio Segment [Member] | Commercial Construction [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 40,106,633 | 51,258,970 | 52,738,783
Real Estate Portfolio Segment [Member] | Residential Construction [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 9,413,263 | 11,220,683 | 6,549,260
Real Estate Portfolio Segment [Member] | Residential [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 197,002,419 | 203,752,620 | 206,257,927
Real Estate Portfolio Segment [Member] | Farmland [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 61,779,859 | 49,950,984 | 47,034,426
Consumer and Other Portfolio Segment [Member] | Consumer [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | 20,605,465 | 22,820,314 | 25,675,560
Consumer and Other Portfolio Segment [Member] | Other [Member] |  |  |
Commercial and Agricultural |  |  |
Loans receivable | $ 16,490,737 | $ 7,209,682 | $ 12,405,582

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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