Note 7 - Investments Schedule of Unrealized Losses (Details) (USD $)	12 Months Ended
	Dec. 31, 2011 security	Dec. 31, 2012 security
Schedule of Securities With Unrealized Losses
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses	$ 0
Continuous Loss Position Less Than Twelve Months
Number of Securities	10	1
Fair value HTM And AFS state and municipal obligations	12,620,000	31,000
Unrealized losses AFS And HTM state and municipal obligations	984,000	2,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	28	8
Fair value HTM And AFS state and municipal obligations	82,082,000	11,333,000
Unrealized Losses AFS And HTM state and municipal obligations	5,832,000	408,000
Continuous Loss Position, Total
Number of securities	38	9
Fair Value HTM And AFS state and municipal obligations	94,702,000	11,364,000
Unrealized losses AFS and HTM state and municipal obligations	6,816,000	410,000
State and municipal obligations
Continuous Loss Position Less Than Twelve Months
Number of Securities	1	0
Fair value HTM And AFS state and municipal obligations	525,000	0
Unrealized losses AFS And HTM state and municipal obligations	17,000	0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	9	2
Fair value HTM And AFS state and municipal obligations	72,653,000	6,004,000
Unrealized Losses AFS And HTM state and municipal obligations	4,866,000	49,000
Continuous Loss Position, Total
Number of securities	10	2
Fair Value HTM And AFS state and municipal obligations	73,178,000	6,004,000
Unrealized losses AFS and HTM state and municipal obligations	4,883,000	49,000
Corporate bonds and notes
Continuous Loss Position Less Than Twelve Months
Number of Securities	6	0
Fair value available-for-sale securities	2,457,000	0
Unrealized losses available-for-sale securities	97,000	0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	18	6
Fair value available-for-sale securities	8,902,000	5,329,000
Unrealized losses available-for-sale securities	950,000	359,000
Continuous Loss Position, Total
Number of securities	24	6
Fair value available-for-sale securities	11,359,000	5,329,000
Unrealized losses available-for-sale securities	1,047,000	359,000
RMBS
Continuous Loss Position Less Than Twelve Months
Number of Securities	2	1
Fair value available-for-sale securities	354,000	31,000
Unrealized losses available-for-sale securities	1,000	2,000
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	2	1
Fair value available-for-sale securities	354,000	31,000
Unrealized losses available-for-sale securities	1,000	2,000
CMBS
Continuous Loss Position Less Than Twelve Months
Number of Securities	0
Fair value available-for-sale securities	0
Unrealized losses available-for-sale securities	0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	1
Fair value available-for-sale securities	527,000
Unrealized losses available-for-sale securities	16,000
Continuous Loss Position, Total
Number of securities	1
Fair value available-for-sale securities	527,000
Unrealized losses available-for-sale securities	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
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