Note 9 - Other Borrowings and Subordinated Debentures (Details) - Debt (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other Borrowings
Notes payable, due 12/31/2014 to 12/31/2016, 3.25%, floating rate, unsecured	$ 46,000	$ 46,000
	123,396	117,090
Subordinated Debentures
Trust preferred securities, due 12/30/2033, floating rate of 2.80% above the three month LIBOR rate, reset quarterly, callable without penalty	20,620	20,620
Total other borrowings and subordinated debentures	144,016	137,710
FHLB Advances [Member]
Other Borrowings
FHLB advances, due 2014 to 2033, 0.35% to 8.41% secured by real estate loans	77,396	71,090
Trust Preferred Securities Due 12/30/2033 Floating Rate of 2.8% Above Three Month LIBOR 1 [Member]
Subordinated Debentures
Trust preferred securities, due 12/30/2033, floating rate of 2.80% above the three month LIBOR rate, reset quarterly, callable without penalty	$ 20,620	$ 20,620