Note 7 - Other Comprehensive Income (Loss) (Details) - Components of Other Comprehensive Income (Loss) and Related Tax Effects (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Components of Other Comprehensive Income (Loss) and Related Tax Effects [Abstract]
Net unrealized gains (losses) arising during the period	$ 312	$ (1,373)	$ 550	$ (1,518)
Net unrealized gains (losses) arising during the period	120	0	178	0
Net unrealized gains (losses) arising during the period	192	(1,373)	372	(1,518)
Other comprehensive income (loss)	312	(1,373)	550	(1,518)
Other comprehensive income (loss)	120	0	178	0
Other comprehensive income (loss)	$ 192	$ (1,373)	$ 372	$ (1,518)