CONSOLIDATED CONDENSED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]
Balance at Jan. 31, 2015	$ 392,964	$ 299	$ (239,557)	$ 144,791	$ 444,438	$ 42,993
Balance (in Shares) at Jan. 31, 2015		29,853	21,954
Net income	32,583				27,750	4,833
Treasury stock acquired	(60,116)		$ (60,116)
Treasury stock acquired (in Shares)			1,044
Stock based compensation expense	28		$ 5	23
Stock based compensation expense (in Shares)			(3)
Noncontrolling interests distribution and other	(605)					(605)
Balance at Oct. 31, 2015	364,854	$ 299	$ (299,668)	144,814	472,188	47,221
Balance (in Shares) at Oct. 31, 2015		29,853	22,995
Balance at Jan. 31, 2016	355,759	$ 299	$ (309,754)	144,844	475,874	44,496
Balance (in Shares) at Jan. 31, 2016		29,853	23,204
Net income	23,969				19,952	4,017
Treasury stock acquired	(4,353)		$ (4,353)
Treasury stock acquired (in Shares)			88
Stock based compensation expense	1,163		$ 263	900
Stock based compensation expense (in Shares)			(22)
Noncontrolling interests distribution and other	(2,096)					(2,096)
Balance at Oct. 31, 2016	$ 374,442	$ 299	$ (313,844)	$ 145,744	$ 495,826	$ 46,417
Balance (in Shares) at Oct. 31, 2016		29,853	23,270