Intangibles - Intangible Assets by Major Class Subject to Amortization (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2017	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Original Cost	$ 21,813	$ 22,713
Accumulated Amortization	12,419	11,647
Impairment	2,289	0
Currency Translation	26	72
Net Book Value	$ 7,131	$ 11,138
Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life,	8 years	8 years
Original Cost	$ 2,776	$ 2,776
Accumulated Amortization	1,496	1,240
Impairment	310	0
Currency Translation	3	9
Net Book Value	$ 973	$ 1,545
Non-compete agreement
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life,	5 years	5 years
Original Cost	$ 1,600	$ 1,600
Accumulated Amortization	1,579	1,547
Impairment	0	0
Currency Translation	0	0
Net Book Value	$ 21	$ 53
Below market lease
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life,		5 years
Original Cost		$ 900
Accumulated Amortization		900
Impairment		0
Currency Translation		0
Net Book Value		$ 0
Technology asset
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life,	5 years	5 years
Original Cost	$ 1,869	$ 1,869
Accumulated Amortization	643	389
Impairment	0	0
Currency Translation	7	37
Net Book Value	$ 1,233	$ 1,517
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life,	10 years	10 years
Original Cost	$ 15,568	$ 15,568
Accumulated Amortization	8,701	7,571
Impairment	1,979	0
Currency Translation	16	26
Net Book Value	$ 4,904	$ 8,023