CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Jan. 31, 2018	$ 299	$ (313,643)	$ 146,923	$ 547,913	$ 50,434	$ 431,926
Balance (in Shares) at Jan. 31, 2018	29,853,000	23,287,000
Net income				31,645	5,865	37,510
Capital contributions					524	524
Treasury stock acquired		$ (21,855)				$ (21,855)
Treasury stock acquired (in Shares)		305,000				305,000
Noncontrolling interests distribution and other					(4,489)	$ (4,489)
Issuance of equity awards, stock based compensation expense and related tax effects		$ 305	1,350			1,655
Issuance of equity awards, stock based compensation expense and related tax effects (in Shares)		(12,000)
Balance at Jan. 31, 2019	$ 299	$ (335,193)	148,273	579,558	52,334	445,271
Balance (in Shares) at Jan. 31, 2019	29,853,000	23,580,000
Net income				7,427	4,217	11,644
Capital contributions					312	312
Noncontrolling interests distribution and other					(4,264)	(4,264)
Issuance of equity awards, stock based compensation expense and related tax effects		$ 127	516			643
Issuance of equity awards, stock based compensation expense and related tax effects (in Shares)		(19,000)
Balance at Jan. 31, 2020	$ 299	$ (335,066)	148,789	586,985	52,599	453,606
Balance (in Shares) at Jan. 31, 2020	29,853,000	23,561,000
Net income				3,001	2,617	5,618
Capital contributions					112	112
Treasury stock acquired		$ (19,629)				$ (19,629)
Treasury stock acquired (in Shares)		315,000				315,000
Noncontrolling interests distribution and other					(2,928)	$ (2,928)
Issuance of equity awards, stock based compensation expense and related tax effects		$ 83	321			404
Issuance of equity awards, stock based compensation expense and related tax effects (in Shares)		(15,000)
Balance at Jan. 31, 2021	$ 299	$ (354,612)	$ 149,110	$ 589,986	$ 52,400	$ 437,183
Balance (in Shares) at Jan. 31, 2021	29,853,000	23,861,000