Condensed Consolidated Balance Sheets - Parentheticals - $ / shares	Jul. 31, 2018	Oct. 31, 2017
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	75,000,000	50,000,000
Common stock, shares issued	23,799,035	23,172,792
Common Stock, Shares, Outstanding	23,799,035	23,172,792
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0