Note 10 - Employee Benefit Plans (Detail) - Components of net periodic pension cost (Pension Plans, Defined Benefit [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Pension Plans, Defined Benefit [Member]
Service cost	$ 118	$ 94	$ 354	$ 282
Interest cost	210	225	630	675
Expected return on plan assets	(240)	(264)	(720)	(792)
Amortization of the unrecognized loss	203	80	609	240
Net periodic benefit cost	$ 291	$ 135	$ 873	$ 405