INCOME TAXES - Schedule of Tax Effects of Temporary Differences that Gave Rise to Deferred Tax Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Assets:
Net operating loss carryforwards	$ 13,964	$ 14,360
Stock awards	2,726	2,325
Accrued expenses	1,480	515
Lease liabilities	1,189	772
Research and development costs deferral	1,015
Research and development credit carryforwards	269	269
Other	337	1,332
Total Assets	20,980	19,573
Liabilities:
Purchased intangibles	(3,674)	(3,533)
Construction contracts	(1,229)	(1,034)
Property and equipment	(1,033)	(1,334)
Right-of-use assets	(1,184)	(768)
Other	(431)	(43)
Total Liabilities	(7,551)	(6,712)
Valuation allowances	(9,740)	(12,404)
Deferred tax assets, net	3,689	457
Net operating losses	5,500
Income tax expense	$ (11,296)	$ (11,356)	$ (1,074)