Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Oct. 31, 2016	Jan. 31, 2016	Oct. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	3,000,000	3,000,000	3,000,000
Preferred stock, shares issued (shares)	0	0	0
Preferred stock, shares outstanding (shares)	0	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	25,000,000	25,000,000	25,000,000
Common stock, shares issued (shares)	15,179,664	14,998,187	14,998,187
Common stock, shares outstanding (shares)	15,179,664	14,998,187	14,998,187