Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
ASSETS
Allowances for accounts receivable	$ 921	$ 1,052
LIABILITIES AND STOCKHOLDERS’ EQUITY
Discounts on total debt	$ 3,449	$ 3,639
Preferred stock, par value (in US$ per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in US$ per share)	$ 0.001	$ 0.001
Common stock, shares authorized	63,000,000	63,000,000
Common stock, shares issued	33,092,491	32,660,583
Common stock, shares outstanding	33,092,491	32,660,583