Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Assets:
Amortized Cost	$ 16,366	$ 15,449
Gross Unrealized Loss	(106)	0
Gross Unrealized Gain	73	11
Estimated Fair Value	16,333	15,460
Liabilities:
Amortized Cost	1,613	700
Gross Unrealized Loss	(106)	0
Gross Unrealized Gain	72	11
Estimated Fair Value	1,579	711
Level 1
Assets:
Amortized Cost	1,069	4,765
Gross Unrealized Loss	(106)	0
Gross Unrealized Gain	73	11
Estimated Fair Value	1,036	4,776
Level 1 | Money market funds
Assets:
Amortized Cost	71	4,676
Gross Unrealized Loss	0	0
Gross Unrealized Gain	0	0
Estimated Fair Value	71	4,676
Level 1 | Securities held in deferred compensation plan
Assets:
Amortized Cost	998	89
Gross Unrealized Loss	(106)	0
Gross Unrealized Gain	73	11
Estimated Fair Value	965	100
Level 1 | Deferred compensation plan liabilities
Liabilities:
Amortized Cost	1,013	100
Gross Unrealized Loss	(106)	0
Gross Unrealized Gain	72	11
Estimated Fair Value	979	111
Level 2
Assets:
Amortized Cost	15,297	10,684
Gross Unrealized Loss	0	0
Gross Unrealized Gain	0	0
Estimated Fair Value	15,297	10,684
Level 2 | Commercial paper
Assets:
Amortized Cost	7,499	4,999
Gross Unrealized Loss	0	0
Gross Unrealized Gain	0	0
Estimated Fair Value	7,499	4,999
Level 2 | Corporate notes and bonds
Assets:
Amortized Cost	0	1,085
Gross Unrealized Loss	0	0
Gross Unrealized Gain	0	0
Estimated Fair Value	0	1,085
Level 2 | US treasuries
Assets:
Amortized Cost	7,798	4,600
Gross Unrealized Loss	0	0
Gross Unrealized Gain	0	0
Estimated Fair Value	7,798	4,600
Level 3 | Contingent consideration
Liabilities:
Amortized Cost	600	600
Gross Unrealized Loss	0	0
Gross Unrealized Gain	0	0
Estimated Fair Value	$ 600	$ 600