Note 7 - Summary of Long-term Investment (Details) - Other Noncurrent Assets [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 03, 2016	Mar. 27, 2016
Beginning balance	$ 389	$ 394
Donated Common Shares, Carrying Value, Write-off	(50)
Impairment charges		(5)
Ending balance	$ 339	$ 389