Note 9 - Other Borrowings and Subordinated Debentures (Detail) - Debt (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Long-term debt	$ 90,900
Total other borrowings and subordinated debentures	121,796	121,100
Other debt	90,866	90,170
FHLB Advances [Member]
Long-term debt	90,866	89,898
Other Borrowings [Member]
Other debt		272
Trust Preferred Securities Due 12/30/2033 Fixed at 8.25% [Member]
Long-term debt	10,310	10,310
Trust Preferred Securities Due 12/30/2033 Floating Rate of 2.8% Above Three Month LIBOR 1 [Member]
Long-term debt	20,620	20,620
Subordinated Debentures [Member]
Long-term debt	$ 30,930	$ 30,930