Fair Value Measurements (Details) - Fair Value, Measurement, Recurring - USD ($) $ in Thousands	Apr. 30, 2022	Jan. 31, 2022
Level 1
Assets:
Time deposits (included in other long-term assets)	$ 385	$ 385
Total assets	12,481	11,514
Level 1 | Money Market Funds
Assets:
Money market accounts (included in cash and cash equivalents)	12,096	11,129
Level 2
Assets:
Time deposits (included in other long-term assets)	0	0
Total assets	0	0
Level 2 | Money Market Funds
Assets:
Money market accounts (included in cash and cash equivalents)	0	0
Level 3
Assets:
Time deposits (included in other long-term assets)	0	0
Total assets	0	0
Level 3 | Money Market Funds
Assets:
Money market accounts (included in cash and cash equivalents)	$ 0	$ 0