Note 11 - Segment Information (Details) - Revenue by Primary Geographic Operating Region (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Total Revenue:
Revenues	$ 10,941	$ 12,642	$ 17,081
Power Supplies [Member] | North America [Member]
Total Revenue:
Revenues	2,122	2,564	3,327
Power Supplies [Member] | Europe [Member]
Total Revenue:
Revenues	1,232	1,218	1,587
Power Supplies [Member] | Asia Pacific [Member]
Total Revenue:
Revenues	2,520	2,707	4,506
Power Supplies [Member]
Total Revenue:
Revenues	5,874	6,489	9,420
Tape Libraries [Member] | North America [Member]
Total Revenue:
Revenues	3,982	3,793	5,712
Tape Libraries [Member] | Europe [Member]
Total Revenue:
Revenues	760	1,977	1,441
Tape Libraries [Member] | Asia Pacific [Member]
Total Revenue:
Revenues	121	229	218
Tape Libraries [Member] | Other Geographic Areas [Member]
Total Revenue:
Revenues	204	154	290
Tape Libraries [Member]
Total Revenue:
Revenues	5,067	6,153	7,661
North America [Member]
Total Revenue:
Revenues	6,104	6,357	9,039
Europe [Member]
Total Revenue:
Revenues	1,992	3,195	3,028
Asia Pacific [Member]
Total Revenue:
Revenues	2,641	2,936	4,724
Other Geographic Areas [Member]
Total Revenue:
Revenues	$ 204	$ 154	$ 290