CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Jan. 31, 2016	$ 299	$ (309,754)	$ 144,844	$ 475,874	$ 44,496	$ 355,759
Balance (in Shares) at Jan. 31, 2016	29,853	23,204
Net income				19,952	4,017	23,969
Treasury stock acquired		$ (4,353)				(4,353)
Treasury stock acquired (in Shares)		88
Stock based compensation expense		$ 263	900			1,163
Noncontrolling interests distribution and other					(2,096)	(2,096)
Balance at Oct. 31, 2016	$ 299	$ (313,844)	145,744	495,826	46,417	374,442
Balance (in Shares) at Oct. 31, 2016	29,853	23,292
Balance at Jan. 31, 2017	$ 299	$ (313,838)	145,767	508,207	47,839	388,274
Balance (in Shares) at Jan. 31, 2017	29,853	23,292
Net income				20,653	4,124	24,777
Capital contributions					738	738
Issuance of equity awards and stock based compensation expense		$ 188	1,120			1,308
Issuance of equity awards and stock based compensation expense (in Shares)		(5)
Noncontrolling interests distribution and other					(1,725)	(1,725)
Balance at Oct. 31, 2017	$ 299	$ (313,650)	$ 146,887	$ 528,860	$ 50,976	$ 413,372
Balance (in Shares) at Oct. 31, 2017	29,853	23,287