Employee Benefit Plans - Other Stock-Based Compensation Plans (Details)		12 Months Ended
	Jan. 01, 2018 USD ($) offeringPeriod	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($) shares	Mar. 31, 2020 USD ($) shares
Other Stock-Based Compensation Plans
Stock-based compensation expense | $		$ 3,401,000	$ 2,902,000	$ 2,495,000
Deferred compensation plans, amount invested | $		1,000,000.0
Deferred compensation plans, amount vested | $		$ 1,000,000.0
Restricted stock units
Other Stock-Based Compensation Plans
Granted (in shares) | shares		191,000
Inducement Plan
Other Stock-Based Compensation Plans
Stock options authorized under the plan (in shares) | shares		300,000
Granted (in shares) | shares		0
Inducement Plan | Stock options
Other Stock-Based Compensation Plans
Granted (in shares) | shares			95,000
Inducement Plan | Restricted stock units
Other Stock-Based Compensation Plans
Granted (in shares) | shares		0	84,914
ESPP
Other Stock-Based Compensation Plans
Purchase price of common stock (as a percent)	95.00%
Number of offering periods | offeringPeriod	2
Duration of offering period	6 months
Annual stock value | $	$ 30,000.00
Number of share repurchases | shares		95,000	97,000	91,000
Stock-based compensation expense | $		$ 0
Restricted cash | $		$ 100,000
ESPP | Minimum
Other Stock-Based Compensation Plans
Employer matching contribution (as a percent)	1.00%
ESPP | Maximum
Other Stock-Based Compensation Plans
Employer matching contribution (as a percent)	15.00%