CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] - USD ($) $ in Thousands	Jul. 31, 2017	Jan. 31, 2017
Allowance for doubtful accounts (in dollars)	$ 230	$ 417
Inventories, net of reserves	$ 2,316	$ 2,305
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	7,663,890	7,620,215
Common stock, shares outstanding	7,307,449	7,263,774
Treasury stock, shares	356,441	356,441