Note 2 - Marketable Securities (Tables)

12 Months Ended

Jun. 30, 2015

Notes Tables

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

June 30, 2014 (in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
U.S. Agency securities	$	332	$	—	$	—	$	332
Municipal securities		76		—		—		76
Corporate securities		1,354		1		—		1,355
Total	$	1,762	$	1	$	—	$	1,763