Note 2 - Business Segment Information (Details) - Assets by Geographical Region (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2011
United States [Member]
Note 2 - Business Segment Information (Details) - Assets by Geographical Region [Line Items]
Assets by Geographic Region	$ 46,843	[1]	$ 44,286	[1]	$ 46,343	[1]
Canada [Member]
Note 2 - Business Segment Information (Details) - Assets by Geographical Region [Line Items]
Assets by Geographic Region	336	[1]	322	[1]	298	[1]
Total [Member]
Note 2 - Business Segment Information (Details) - Assets by Geographical Region [Line Items]
Assets by Geographic Region	$ 47,179	[1]	$ 44,608	[1]	$ 46,641	[1]

[1] Long-lived assets include property, plant and equipment, and other long term assets. Goodwill and intangible assets are not included in long-lived assets.