Note 10 - Shared-based Compensation and Employee Benefits Plans (Tables)

9 Months Ended

Dec. 28, 2019

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Three Month Periods Ended					Nine Month Periods Ended
	December 2 8 , 201 9		December 29 , 201 8			December 2 8 , 201 9			December 29 , 201 8
Dividend yield		—		—			—			—
Expected volatility		—		96.21	%		101.97	%		95.29	%
Risk-free interest rate		—		2.84	%		2.25	%		2.83	%
Expected term (years)		—		8.28			8.36			8.30

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Terms (Years)		Aggregate Intrinsic Value (in thousands)
Outstanding at March 31, 2018		98,580		$	8.40		8.0	$	—
Granted		100,319			4.65		9.6
Forfeited / Expired		(16,533	)		10.35
Outstanding at March 30, 2019		182,366		$	6.15		8.4	$	—
Granted		69,880			5.04		9.4
Forfeited / Expired		(2,147	)		7.15
Outstanding at December 28, 2019		250,099		$	5.83		8.1	$	—
Exercisable at December 28, 2019		80,275		$	7.67		6.3	$	—
At December 28, 2019, expected to vest in the future		169,824		$	4.96		9.0	$	—

Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

	Shares			Weighted Average Fair Value
Non-Vested at March 31, 2018		19,997		$	9.75
Granted		20,680			4.65
Vested		(16,667	)		4.80
Forfeited or cancelled		(1,667	)		11.85
Non-Vested at March 30, 2019		22,343		$	8.40
Granted		—			—
Vested		(11,009	)		11.43
Forfeited or cancelled		(1,334	)		12.00
Non-Vested at December 28, 2019		10,000		$	4.76