Note 5 - Capital Lease Obligations (Detail) - Capital lease assets balances (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Original cost	$ 656
Accumulated depreciation	253
Net book value	403
July 2010 [Member]
Original cost	215
Accumulated depreciation	137
Net book value	78
November 2010 [Member]
Original cost	48
Accumulated depreciation	27
Net book value	21
June 2011 [Member]
Original cost	140
Accumulated depreciation	47
Net book value	93
January 2012 Asset 1 [Member]
Original cost	224
Accumulated depreciation	37
Net book value	187
January 2012 Asset 2 [Member]
Original cost	29
Accumulated depreciation	5
Net book value	$ 24