Note 8 - Securities Available For Sale (Details) - Summary of Contractual Maturity Adjusted for Scheduled Repayments of Principal and Projected Prepayments (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Summary of Contractual Maturity Adjusted for Scheduled Repayments of Principal and Projected Prepayments [Abstract]
Due less than one year	$ 56,147
Due less than one year	55,792
Due after one year through five years	33,520
Due after one year through five years	33,583
Due after five years through ten years	0
Due after five years through ten years	0
Due after ten years	758
Due after ten years	312
Total	90,425
Total	$ 89,687	$ 85,891