Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014
Consolidated Balance Sheets [Abstract]
Trade, allowance	$ 669	$ 780
Preferred stock, par value	$ 0.01
Preferred stock, shares authorized	10,000,000
Common stock, par value	$ 0.01
Common stock, shares authorized	100,000,000
Common stock, shares issued	22,049,529	22,049,529
Common stock, shares outstanding	21,526,169	21,767,700
Treasury stock, shares	523,360	281,829