Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, accumulated other comprehensive loss	$ (7,924)	$ (5,865)
Change in Period	(398)	(2,503)
Tax effect of change in period	(63)	444
Balance, accumulated other comprehensive loss	(8,385)	(7,924)
Effect of Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, accumulated other comprehensive loss	(2,495)	(2,156)
Change in Period	(330)	(339)
Tax effect of change in period	0	0
Balance, accumulated other comprehensive loss	(2,825)	(2,495)
Minimum Pension Liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, accumulated other comprehensive loss	(5,429)	(3,709)
Change in Period	(68)	(2,164)
Tax effect of change in period	(63)	444
Balance, accumulated other comprehensive loss	$ (5,560)	$ (5,429)