Note 6 - Investments Schedule of Unrealized Losses (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Continuous Loss Position Less Than Twelve Months
Number of Securities	4	10
Fair value HTM And AFS state and municipal obligations	$ 1,058,000	$ 12,620,000
Unrealized losses AFS And HTM state and municipal obligations	29,000	984,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	19	28
Fair value HTM And AFS state and municipal obligations	22,838,000	82,082,000
Unrealized Losses AFS And HTM state and municipal obligations	1,256,000	5,832,000
Continuous Loss Position, Total
Number of securities	23	38
Fair Value HTM And AFS state and municipal obligations	23,896,000	94,702,000
Unrealized losses AFS and HTM state and municipal obligations	1,285,000	6,816,000
State and municipal obligations
Continuous Loss Position Less Than Twelve Months
Number of Securities	0	1
Fair value HTM And AFS state and municipal obligations	0	525,000
Unrealized losses AFS And HTM state and municipal obligations	0	17,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	6	9
Fair value HTM And AFS state and municipal obligations	16,495,000	72,653,000
Unrealized Losses AFS And HTM state and municipal obligations	742,000	4,866,000
Continuous Loss Position, Total
Number of securities	6	10
Fair Value HTM And AFS state and municipal obligations	16,495,000	73,178,000
Unrealized losses AFS and HTM state and municipal obligations	742,000	4,883,000
Corporate bonds and notes
Continuous Loss Position Less Than Twelve Months
Number of Securities	2	6
Fair value available-for-sale securities	930,000	2,457,000
Unrealized losses available-for-sale securities	28,000	97,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	12	18
Fair value available-for-sale securities	6,266,000	8,902,000
Unrealized losses available-for-sale securities	512,000	950,000
Continuous Loss Position, Total
Number of securities	14	24
Fair value available-for-sale securities	7,196,000	11,359,000
Unrealized losses available-for-sale securities	540,000	1,047,000
RMBS
Continuous Loss Position Less Than Twelve Months
Number of Securities	1	2
Fair value available-for-sale securities	38,000	354,000
Unrealized losses available-for-sale securities	1,000	1,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	0	0
Fair value available-for-sale securities	0	0
Unrealized losses available-for-sale securities	0	0
Continuous Loss Position, Total
Number of securities	1	2
Fair value available-for-sale securities	38,000	354,000
Unrealized losses available-for-sale securities	1,000	1,000
CMBS
Continuous Loss Position Less Than Twelve Months
Number of Securities	1	0
Fair value available-for-sale securities	90,000	0
Unrealized losses available-for-sale securities	0	0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	1	1
Fair value available-for-sale securities	77,000	527,000
Unrealized losses available-for-sale securities	2,000	16,000
Continuous Loss Position, Total
Number of securities	2	1
Fair value available-for-sale securities	167,000	527,000
Unrealized losses available-for-sale securities	2,000	16,000
Equity securities
Continuous Loss Position Less Than Twelve Months
Number of Securities		1
Fair value available-for-sale securities		9,284,000
Unrealized losses available-for-sale securities		869,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities		0
Fair value available-for-sale securities		0
Unrealized losses available-for-sale securities		0
Continuous Loss Position, Total
Number of securities		1
Fair value available-for-sale securities		9,284,000
Unrealized losses available-for-sale securities		$ 869,000