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				2,838	628	3,466
Treasury stock acquired		$ (4,353)				(4,353)
Treasury stock acquired (in Shares)		88
Stock based compensation expense		$ 3	12			15
Noncontrolling interests distribution and other					(268)	(268)
Balance at Apr. 30, 2016	$ 299	$ (314,104)	144,856	478,712	44,856	354,619
Balance (in Shares) at Apr. 30, 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				4,544	1,068	5,612
Stock based compensation expense		$ 6	23			29
Balance at Apr. 30, 2017	$ 299	$ (313,832)	$ 145,790	$ 512,751	$ 48,907	$ 393,915
Balance (in Shares) at Apr. 30, 2017	29,853	23,292