Stock-based compensation (Tables)

12 Months Ended

Mar. 28, 2020

Stock-based compensation

Summary of Company's restricted stock award grants

The following table summarizes the Company's restricted stock award grants during fiscal 2019, 2018, and 2017.

											Number of
											Performance-
							Number of				Based
	Total			Number of			Performance-		Performance-		Awards
	Number of			Time-Based	Time-Based		Based		Based		that Met
	Awards	Grant Date		Awards	Vesting		Awards		Vesting		Performance
Grant Date	Granted	Fair Value		Granted	Period		Granted		Period		Condition
December 12, 2017	22,191	$	5.52	4,528	3	years	17,663	(1)	3	years	9,011
June 1, 2018	551,453	$	7.68	112,553	3	years	438,900	(2)	3	years	205,616
September 12, 2018	73,264	$	10.92	73,264	3	years	—		—	years	—
June 1, 2019	605,927	$	7.03	123,667	3	years	482,260	(3)	3	years	182,520
August 28, 2019	172,792	$	4.63	172,792	3	years	—		—	years	—

(1) These performance-based restricted stock awards vest based on achievement of fiscal 2017 performance targets and are also subject to time-based vesting requirements.

(2) These performance-based restricted stock awards vest based on achievement of fiscal 2018 performance targets and are also subject to time-based vesting requirements.

(3) These performance-based restricted stock awards vest based on achievement of fiscal 2019 performance targets and are also subject to time-based vesting requirements.

Summary of Company’s restricted stock awards activity

	Restricted Stock	Weighted Average
	Awards	Grant Date Fair Value
Nonvested at March 31, 2018	243,235	$	5.39
Granted	624,717		8.06
Vested	(70,132)		5.38
Forfeited	(4,372)		5.29
Withheld related to net settlement	(23,590)		5.38
Nonvested at March 30, 2019	769,858	$	7.56
Granted	778,719		6.50
Vested	(174,239)		7.13
Forfeited	(277,597)		7.75
Withheld related to net settlement	(55,477)		6.73
Nonvested at March 28, 2020	1,041,264	$	6.84

Summary of the Company's annual stock option grants

The following table summarizes the Company's annual stock option grants during fiscal 2017:

	Number of Stock
Grant Date	Options Granted
September 12, 2017	343,352

Summary of the Company's stock option activity

	Fiscal Year
	2019						2018						2017
				Weighted-						Weighted-						Weighted-
		Weighted-		average				Weighted-		average				Weighted-		average
		average		contractual	Aggregate			average		contractual	Aggregate			average		contractual	Aggregate
		exercise		term	intrinsic			exercise		term	intrinsic			exercise		term	intrinsic
		price		remaining	value			price		remaining	value			price		remaining	value
	Shares	(per share)		(years)	(thousands)		Shares	(per share)		(years)	(thousands)		Shares	(per share)		(years)	(thousands)
Beginning balance	2,895,539	$	15.27				3,040,206	$	15.40				2,946,028	$	16.81
Granted	—	$	—				—	$	—				343,352	$	4.10
Exercised	—	$	—				—	$	—				—	$	—
Forfeited	(42,864)	$	8.83				(27,793)	$	18.00				(90,881)	$	15.13
Expired	(293,443)	$	15.98				(116,874)	$	17.89				(158,293)	$	17.31
Ending balance	2,559,232	$	15.30	4.27	$	—	2,895,539	$	15.27	5.27	$	2,460,384	3,040,206	$	15.40	6.23	$	482
Vested and exercisable at end of year	2,389,873	$	15.69	4.16	$	—	2,428,274	$	16.49	4.95	$	1,102,326	2,241,283	$	17.53	5.65	$	7

Summary of the weighted-average assumptions used with the Black Scholes pricing model to estimate the weighted-average grant date fair value of stock options granted

	Fiscal 2017
Expected term	6.0	years
Expected volatility	60.6	%
Risk-free interest rate	1.9	%
Dividend yield	0.0	%