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Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Sep. 30, 2016
IntangibleAssets [Line Items]
Gross Carrying Amount	$ 35,871	$ 35,871
Accumulated Amortization	5,395	4,148
INTANGIBLE ASSETS, net of amortization	30,476	31,723
Trademarks And Trade Names [Member]
IntangibleAssets [Line Items]
Gross Carrying Amount	3,845	3,845
Accumulated Amortization	203	139
INTANGIBLE ASSETS, net of amortization	$ 3,642	$ 3,706
Trademarks And Trade Names [Member] | Maximum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	20 years	20 years
Trademarks And Trade Names [Member] | Minimum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	5 years	5 years
Technical Library [Member]
IntangibleAssets [Line Items]
Gross Carrying Amount	$ 400	$ 400
Accumulated Amortization	66	61
INTANGIBLE ASSETS, net of amortization	$ 334	$ 339
Technical Library [Member] | Maximum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	20 years	20 years
Customer Relationships [Member]
IntangibleAssets [Line Items]
Gross Carrying Amount	$ 27,414	$ 27,414
Accumulated Amortization	2,661	2,003
INTANGIBLE ASSETS, net of amortization	$ 24,753	$ 25,411
Customer Relationships [Member] | Maximum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	15 years	15 years
Customer Relationships [Member] | Minimum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	6 years	6 years
Developed Technology [Member]
IntangibleAssets [Line Items]
Gross Carrying Amount	$ 400	$ 400
Accumulated Amortization	383	358
INTANGIBLE ASSETS, net of amortization	$ 17	$ 42
Developed Technology [Member] | Maximum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	4 years	4 years
Order Backlog [Member]
IntangibleAssets [Line Items]
Gross Carrying Amount	$ 1,621	$ 1,621
Accumulated Amortization	828	545
INTANGIBLE ASSETS, net of amortization	$ 793	$ 1,076
Order Backlog [Member] | Maximum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	1 year	1 year
Construction Contract Value [Member]
IntangibleAssets [Line Items]
Gross Carrying Amount	$ 2,191	$ 2,191
Accumulated Amortization	1,254	1,042
INTANGIBLE ASSETS, net of amortization	$ 937	$ 1,149
Construction Contract Value [Member] | Maximum [Member]
IntangibleAssets [Line Items]
Estimated Useful Lives	1 year	1 year

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 2
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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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