Note 14 - Income Taxes (Details) - A reconciliation of expected consolidated income tax expense to income tax expense (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
A reconciliation of expected consolidated income tax expense to income tax expense [Abstract]
Consolidated income tax expense at 35%	$ 6,477	$ 3,785	$ 7,674
State taxes, net of Federal benefit	33	(126)	(4)
Nontaxable interest income	(17)	(59)	(67)
Change in valuation allowance	60	109	100
Effect of foreign operations	(231)	(114)	153
Non-deductible equity-based compensation	(108)	(46)	(107)
Research credits	(2,108)	(1,168)	(1,148)
Domestic production tax benefit	(403)	(205)	(619)
Change in uncertain tax positions	(151)	5	(419)
Other	(102)	19	(38)
	$ 3,450	$ 2,200	$ 5,525