Note 3 - Business Segment Information (Detail) - Long-lived Assets by Geographical Region (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Jun. 30, 2012
Assets by Geographic Region	$ 46,794	[1]	$ 44,608	[1]
United States [Member]
Assets by Geographic Region	46,442	[1]	44,286	[1]
Canada [Member]
Assets by Geographic Region	$ 352	[1]	$ 322	[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.