Income Taxes (Details) - USD ($)	3 Months Ended
Apr. 30, 2020	Apr. 30, 2019	Jan. 31, 2020
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 234,000	$ (138,000)
Unrecognized tax benefits			$ 5,300,000
Unrecognized tax benefits that would impact effective tax rate			$ 100,000
Decrease in unrecognized tax benefits is reasonably possible	$ 0

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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