CONSOLIDATED BALANCE SHEETS [Parenthetical] - USD ($) $ in Thousands	Jan. 31, 2018	Jan. 31, 2017
Allowance for doubtful accounts (in dollars)	$ 480	$ 417
Inventories, net of reserves	$ 2,422	$ 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	8,472,640	7,620,215
Common stock, shares outstanding	8,116,199	7,263,774
Treasury stock, shares	356,441	356,441