Note 6 - Cash, Cash Equivalents and Marketable Securities Recorded at Fair Value (Details) - Summary of Available-For-Sale Securities (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014
Level 1:
Adjusted Cost	$ 6,715	$ 7,224
Unrealized Gains	1	1
Fair Value	6,716	7,225
Cash & Cash Equivalents	6,266	5,462
Short-term Marketable Securities	450	1,763
Fair Value, Inputs, Level 1 [Member] | Cash [Member]
Level 1:
Adjusted Cost	596	617
Fair Value	596	617
Cash & Cash Equivalents	596	617
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Level 1:
Adjusted Cost	5,670	4,845
Fair Value	5,670	4,845
Cash & Cash Equivalents	5,670	4,845
Fair Value, Inputs, Level 1 [Member]
Level 1:
Adjusted Cost	6,266	5,462
Fair Value	6,266	5,462
Cash & Cash Equivalents	6,266	5,462
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Level 1:
Adjusted Cost	399	1,354
Unrealized Gains	1	1
Fair Value	400	1,355
Short-term Marketable Securities	400	1,355
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Level 1:
Adjusted Cost	50	76
Fair Value	50	76
Short-term Marketable Securities	50	76
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member]
Level 1:
Adjusted Cost		332
Fair Value		332
Short-term Marketable Securities		332
Fair Value, Inputs, Level 2 [Member]
Level 1:
Adjusted Cost	449	1,762
Unrealized Gains	1	1
Fair Value	450	1,763
Short-term Marketable Securities	$ 450	$ 1,763