Goodwill and Intangible Assets - Intangible Assets by Major Class Subject to Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Components of intangible assets by major class subject to amortization
Original Cost	$ 22,713	$ 22,291
Accumulated Amortization	11,647	9,055
Currency Translation	72	29
Net Book Value	$ 11,138	$ 13,265
Trade name
Components of intangible assets by major class subject to amortization
Weighted Average Life at September 30,	8 years	8 years
Original Cost	$ 2,776	$ 2,776
Accumulated Amortization	1,240	886
Currency Translation	9	6
Net Book Value	$ 1,545	$ 1,896
Non-compete agreement
Components of intangible assets by major class subject to amortization
Weighted Average Life at September 30,	5 years	5 years
Original Cost	$ 1,600	$ 1,600
Accumulated Amortization	1,547	1,308
Currency Translation	0	0
Net Book Value	$ 53	$ 292
Below market lease
Components of intangible assets by major class subject to amortization
Weighted Average Life at September 30,	5 years	5 years
Original Cost	$ 900	$ 900
Accumulated Amortization	900	865
Currency Translation	0	0
Net Book Value	$ 0	$ 35
Technology asset
Components of intangible assets by major class subject to amortization
Weighted Average Life at September 30,	5 years	5 years
Original Cost	$ 1,869	$ 1,663
Accumulated Amortization	389	84
Currency Translation	37	12
Net Book Value	$ 1,517	$ 1,591
Customer relationships
Components of intangible assets by major class subject to amortization
Weighted Average Life at September 30,	10 years	10 years
Original Cost	$ 15,568	$ 15,352
Accumulated Amortization	7,571	5,912
Currency Translation	26	11
Net Book Value	$ 8,023	$ 9,451