Note 2 - Community National Bancorporation and Community National Bank (Details) - Disposal Group - CNB Branches [Member] - USD ($)			12 Months Ended
	Oct. 11, 2013	Oct. 04, 2013	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash			$ 30,425,618
Loans receivable			54,458,870
Premises and equipment			2,373,822
Core deposit intangible			1,390,762
Other assets			138,899
Total assets sold			88,787,971
LIABILITIES
Deposits			91,022,098
Other liabilities			100,089
Total liabilities sold			91,122,187
Gain on sale, pre-tax			$ 2,334,216
Mason City Iowa [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash		$ 29,905,991
Loans receivable		22,709,735
Premises and equipment		776,782
Core deposit intangible		910,415
Other assets		68,456
Total assets sold		54,371,379
LIABILITIES
Deposits		55,191,930
Other liabilities		53,421
Total liabilities sold		55,245,351
Gain on sale, pre-tax		$ 873,972
Austin Minnesota [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash	$ 519,627
Loans receivable	31,749,135
Premises and equipment	1,597,040
Core deposit intangible	480,347
Other assets	70,443
Total assets sold	34,416,592
LIABILITIES
Deposits	35,830,168
Other liabilities	46,668
Total liabilities sold	35,876,836
Gain on sale, pre-tax	$ 1,460,244