Note 12 - Accumulated Other Comprehensive (Loss) - AOCI Reclass (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Net gain on investments		$ 30
Tax impact		(11)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Total reclassifications for the period		19
Net gain on investments	$ (790)	208
Tax impact	(1,662)	(1,549)
Total reclassifications for the period	$ 2,985	$ 3,575