Additional Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Mar. 31, 2021
Current liabilities:
Salaries, wages, and related benefits	$ 5,687	$ 8,454
Other taxes payable	1,989	1,796
Accrued legal settlements		200
Severance liabilities	7	79
Professional fees	428	97
Other	274	607
Total	8,385	11,233
Liabilities Noncurrent:
Uncertain tax positions	1,148	1,129
Asset retirement obligations	43	170
Employee benefit obligations	2,386	2,639
Other	70	73
Total	$ 3,647	$ 4,011

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