Schedule II - Schedule of Valuation and Qualifying Accounts - Schedule of Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Allowance for Bad Debt [Member]
Balance at beginning of period	$ 487	$ 396	$ 1,090
Charged to statements of income	92	144	98
Write-offs, net of recoveries	(24)	(31)	(834)
Impact of foreign currency translation	(12)	(22)	42
Balance at end of period	543	487	396
Allowance for Returns [Member]
Balance at beginning of period	2,414	1,367	1,115
Charged to statements of income	393	1,608	923
Write-offs, net of recoveries	(376)	(518)	(733)
Impact of foreign currency translation	(34)	(43)	62
Balance at end of period	2,397	2,414	1,367
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance at beginning of period	2,901	1,763	2,205
Charged to statements of income	485	1,752	1,021
Write-offs, net of recoveries	(400)	(549)	(1,567)
Impact of foreign currency translation	(46)	(65)	104
Balance at end of period	$ 2,940	$ 2,901	$ 1,763