Note 10 - Other Non-current Assets (Details) - Other Non-current Assets - USD ($) $ in Thousands	Jun. 28, 2015	Jun. 29, 2014
Other Non-current Assets [Abstract]
Biomass foundation and feedstock, net	$ 2,151	$ 2,683
Debt financing fees	1,611	2,093
Other	213	310
Total other non-current assets	$ 3,975	$ 5,086