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	23,150				20,294	2,856
Treasury stock acquired	(46,190)		$ (46,190)
Treasury stock acquired (in Shares)			764
Stock based compensation expense	12		$ 2	10
Stock based compensation expense (in Shares)			(3)
Noncontrolling interests distribution and other	(507)					(507)
Balance at Jul. 31, 2015	369,429	$ 299	$ (285,745)	144,801	464,732	45,342
Balance (in Shares) at Jul. 31, 2015		29,853	22,715
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	12,495				11,014	1,481
Treasury stock acquired	(4,353)		$ (4,353)
Treasury stock acquired (in Shares)			88
Stock based compensation expense	1,135		$ 258	877
Stock based compensation expense (in Shares)			(22)
Noncontrolling interests distribution and other	(2,096)					(2,096)
Balance at Jul. 31, 2016	$ 362,940	$ 299	$ (313,849)	$ 145,721	$ 486,888	$ 43,881
Balance (in Shares) at Jul. 31, 2016		29,853	23,270