CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 459	$ 434
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares issued	0	0
Common stock, par value	$ .01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	8,475,929	8,475,929
Common stock, shares outstanding	8,004,640	8,013,840
Treasury stock, shares	471,289	462,089