Note 2 - Acquisition of Community National Bancorporation and Community National Bank (Details) (USD $)	0 Months Ended	9 Months Ended					1 Months Ended	9 Months Ended	5 Months Ended		0 Months Ended		1 Months Ended
	May 13, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2004	May 13, 2013 Loan Historical Cost [Member]	May 13, 2013 Loan Fair Value [Member]	Jun. 26, 2013 Community National Bancorporation and Community National Bank [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Community National Bancorporation and Community National Bank [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Community National Bancorporation and Community National Bank [Member] Revolving Credit Note [Member]	May 13, 2013 Community National Bancorporation and Community National Bank [Member] Trust preferred securities [Member]	May 13, 2013 Community National Bancorporation and Community National Bank [Member] Core Deposits [Member]	May 13, 2013 Community National Bancorporation and Community National Bank [Member]	Jun. 26, 2013 Community National Bancorporation and Community National Bank [Member]
Note 2 - Acquisition of Community National Bancorporation and Community National Bank (Details) [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired												100.00%
Business Combination, Consideration Transferred	$ 19,441,834	$ 19,441,834										$ 19,441,834
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)												834,715
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned												13,180,150
Business Combination, Consideration Transferred, Cash Paid												6,261,684
Finite-Lived Core Deposits, Gross		3,311,073										3,440,076
Finite-Lived Intangible Asset, Useful Life											10 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	195,658,486	195,658,486			3,033,022	2,207,891
Certain Loans Acquired in Transfer, Accretable Yield												4,128,315
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Reclassifications to Nonaccretable Difference												397,894
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Outstanding Balance												6,702,000
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value												4,125,175
Debt Instrument, Unamortized Discount (in Dollars)		2,529,562		2,576,825						2,576,825		2,576,825
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	3,911,053	3,911,053										3,950,000
Line of Credit Facility, Current Borrowing Capacity												4,400,000
Line of Credit Facility, Amount Outstanding													10,000,000
Termination Loans													10,000,000
Term Loan Period													3 years
Debt Instrument, Basis Spread on Variable Rate							3.00%	3.18%	2.50%
Line of Credit Facility, Remaining Borrowing Capacity												10,000,000
Deposits		$ 1,741,831,975	$ 1,374,114,100									$ 1,841,385