CONSOLIDATED 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, 2018	$ 299	$ (313,643)	$ 146,923	$ 547,913	$ 50,434	$ 431,926
Balance (in Shares) at Jan. 31, 2018	29,853	23,287
Net income				9,496	856	10,352
Treasury stock acquired		$ (9,128)				(9,128)
Treasury stock acquired (in Shares)		126
Capital contributions					110	110
Issuance of equity awards and stock based compensation expense		$ 13	58			71
Balance at Apr. 30, 2018	$ 299	$ (322,758)	146,981	557,409	51,400	433,331
Balance (in Shares) at Apr. 30, 2018	29,853	23,413
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	23,580
Net income				2,821	894	3,715
Noncontrolling interests distribution and other					(87)	(87)
Capital contributions					146	146
Issuance of equity awards and stock based compensation expense		$ 7	30			37
Balance at Apr. 30, 2019	$ 299	$ (335,186)	$ 148,303	$ 582,379	$ 53,287	$ 449,082
Balance (in Shares) at Apr. 30, 2019	29,853	23,580