INCOME TAXES - Components of Company's Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Current:
Federal	$ 77	$ 3,603	$ (32,490)
State	336	(1,091)	(7,853)
Total	413	2,512	(40,343)
Deferred:
Federal	6,825	971	2
State	(185)	1,168	62
Total	6,640	2,139	64
Income tax benefit (expense)	$ 7,053	$ 4,651	$ (40,279)