INCOME TAXES (Details) - USD ($)	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Credit Carryforwards	$ 26,061,000	$ 39,199,000
Deferred Tax Assets, Valuation Allowance	192,000	213,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	21,000
Tax Credit Carryforward, Amount		11,300,000	$ 5,200,000
Deferred Tax Assets, Tax Credit Carryforwards, Research	400,000	(3,000,000)	900,000
Income Taxes Paid	2,795,000	$ 7,239,000	1,274,000
Proceeds from Income Tax Refunds			$ 655,000
Unrecognized Tax Benefits Without Accrued Penalties and Interest	19,033,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	55,000
Increase (Decrease) in Provision For Income Taxes	$ (18,925,000)