Note 4 - Investment Securities Available for Sale (Details) - Reconciliation of Available for Sale Securities (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 4 - Investment Securities Available for Sale (Details) - Reconciliation of Available for Sale Securities [Line Items]
Amortized cost	$ 219,203	$ 262,100
Gross unrealized gains	521	3,012
Gross unrealized losses	(5,341)	(610)
Fair value	214,383	264,502
State and Municipal [Member]
Note 4 - Investment Securities Available for Sale (Details) - Reconciliation of Available for Sale Securities [Line Items]
Amortized cost	7,393	11,247
Gross unrealized gains	138	283
Gross unrealized losses	(71)	0
Fair value	7,460	11,530
Collateralized Mortgage Obligations (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Reconciliation of Available for Sale Securities [Line Items]
Amortized cost	97,303	122,444
Gross unrealized gains	30	1,219
Gross unrealized losses	(4,201)	(155)
Fair value	93,132	123,508
Other Mortgage-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Reconciliation of Available for Sale Securities [Line Items]
Amortized cost	76,852	62,581
Gross unrealized gains	95	1,328
Gross unrealized losses	(927)	(92)
Fair value	76,020	63,817
SBA Loan-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Reconciliation of Available for Sale Securities [Line Items]
Amortized cost	37,655	65,828
Gross unrealized gains	258	182
Gross unrealized losses	(142)	(363)
Fair value	$ 37,771	$ 65,647