Additional Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Current liabilities:
Salaries, wages, and related benefits	$ 4,793	$ 6,945
Other taxes payable	1,835	1,649
Accrued legal settlements	50
Severance liabilities	100	32
Professional fees	93	50
Other	314	357
Total	7,185	9,033
Liabilities Noncurrent:
Uncertain tax positions	1,116	1,103
Asset retirement obligations	170	170
Payroll taxes deferred under CARES Act	1,287
Employee benefit obligations	1,081	511
Other	74	76
Total	$ 3,728	$ 1,860