Note 12 - Earnings (Loss) Per Common Share From Continuing Operations - (Loss) Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017
(Loss) earnings from continuing operations	$ (20,040)	$ 8,886	$ (27,834)	$ 9,696
Deduct preferred stock dividends paid	6	6	17	17
Undistributed (loss) earnings from continuing operations	(20,046)	8,880	(27,851)	9,679
(Loss) earnings from continuing operations attributable to participating preferred	(78)	35	(109)	49
(Loss) earnings from continuing operations attributable to common shareholders	$ (19,968)	$ 8,845	$ (27,742)	$ 9,630
Weighted average common shares outstanding-basic (in shares)	9,625	9,740	9,694	9,782
Continuing Operations (in dollars per share)	$ (2.07)	$ 0.91	$ (2.86)	$ 0.98
(Loss) earnings from continuing operations attributable to common shareholders	$ (19,968)	$ 8,845	$ (27,742)	$ 9,630
Add dividends on convertible preferred stock		5		15
(Loss) earnings from continuing operations attributable to common stock on a diluted basis	$ (19,968)	$ 8,850	$ (27,742)	$ 9,645
Weighted average common shares outstanding-basic (in shares)	9,625	9,740	9,694	9,782
Additional shares issued related to the equity compensation plan (in shares)		2		2
Additional shares to be issued under full conversion of preferred stock (in shares)		67		67
Total shares for diluted (in shares)	9,625	9,809	9,694	9,851
Diluted (loss) earnings per common share from continuing operations (in dollars per share)	$ (2.07)	$ 0.90	$ (2.86)	$ 0.98