Note 9 - Other Borrowings and Subordinated Debentures (Details) - Debt Components (Parentheticals)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
FHLB Advances [Member] | Minimum [Member]
Note 9 - Other Borrowings and Subordinated Debentures (Details) - Debt Components (Parentheticals) [Line Items]
FHLB advances, interest rate	0.35%	0.35%
FHLB Advances [Member] | Maximum [Member]
Note 9 - Other Borrowings and Subordinated Debentures (Details) - Debt Components (Parentheticals) [Line Items]
FHLB advances, interest rate	8.41%	8.41%
Trust Preferred Securities Due 12/30/2033 Floating Rate of 2.8% Above Three Month LIBOR 1 [Member]
Note 9 - Other Borrowings and Subordinated Debentures (Details) - Debt Components (Parentheticals) [Line Items]
Trust preferred securities, floating rate	2.80%	2.80%