Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Apr. 30, 2016	Jan. 31, 2016
Statement of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 5,824	$ 5,821
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	14,019,000	14,019,000
Treasury stock, shares	1,928,000	1,928,000