Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jan. 01, 2017	Mar. 27, 2016
Accounts receivable, allowances	$ 831	$ 809
Common stock par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares outstanding (in shares)	50,763,486	48,545,311
Related Party [Member]
Accounts receivable, allowances	$ 416	$ 617