Note 6 - Investments Schedule of Unrealized Losses (Details) (USD $)	6 Months Ended
	Jun. 30, 2013 security	Jun. 30, 2012	Dec. 31, 2012 security
Schedule of Securities With Unrealized Losses
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	$ 0	$ 0
Continuous Loss Position Less Than Twelve Months
Number of Securities	1		1
Fair value HTM And AFS state and municipal obligations	2,000		31,000
Unrealized losses AFS And HTM state and municipal obligations	1,000		2,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	4		8
Fair value HTM And AFS state and municipal obligations	8,558,000		11,333,000
Unrealized Losses AFS And HTM state and municipal obligations	852,000		408,000
Continuous Loss Position, Total
Number of securities	5		9
Fair Value HTM And AFS state and municipal obligations	8,560,000		11,364,000
Unrealized losses AFS and HTM state and municipal obligations	853,000		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	2,000		0
Unrealized losses AFS And HTM state and municipal obligations	1,000		0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	2		2
Fair value HTM And AFS state and municipal obligations	5,605,000		6,004,000
Unrealized Losses AFS And HTM state and municipal obligations	446,000		49,000
Continuous Loss Position, Total
Number of securities	3		2
Fair Value HTM And AFS state and municipal obligations	5,607,000		6,004,000
Unrealized losses AFS and HTM state and municipal obligations	447,000		49,000
Corporate bonds and notes
Continuous Loss Position Less Than Twelve Months
Number of Securities	0		0
Fair value available-for-sale securities	0		0
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	0		0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	2		6
Fair value available-for-sale securities	2,953,000		5,329,000
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	406,000		359,000
Continuous Loss Position, Total
Number of securities	2		6
Fair value available-for-sale securities	2,953,000		5,329,000
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	406,000		359,000
RMBS
Continuous Loss Position Less Than Twelve Months
Number of Securities			1
Fair value available-for-sale securities			31,000
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI			2,000
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities			0
Fair value available-for-sale securities			0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI			0
Continuous Loss Position, Total
Number of securities			1
Fair value available-for-sale securities			31,000
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI			$ 2,000