Goodwill and Intangible Assets (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
GOODWILL
Goodwill	$ 64,016	$ 56,215	$ 55,146
Accumulated impairment losses	(40,394)	(40,394)	(40,394)
Carrying amount of goodwill	23,622	15,821	14,752
Goodwill attributable acquisitions	7,801	1,069
Intangible assets subject to amortization:
Gross Carrying Amount	22,707	15,732
Accumulated Amortization	(9,642)	(6,975)
Net Carrying Amount	13,065	8,757
Total intangible assets
Gross Carrying Amount	31,607	26,055
Net Carrying Amount	21,965	19,080
Impairment of intangible assets	267	124	850
Non-cash intangible asset impairment charge, after tax			551
Non-cash intangible asset impairment charge, per diluted share (in dollars per share)			$ 0.06
Aggregate amortization expense related to intangible assets	2,667	2,209	2,007
Estimated future amortization expense related to intangible assets
2015	2,840
2016	2,162
2017	1,787
2018	1,597
2019	1,170
Thereafter	3,509
Net Carrying Amount	13,065	8,757
Trademarks/tradenames/licenses
Intangible assets not subject to amortization:
Carrying Amount	8,900	10,323
Total intangible assets
Carrying amount	8,900	10,323
Tradenames
Intangible assets subject to amortization:
Weighted-Average Amortization Period	15 years	13 years
Intangible assets not subject to amortization:
Carrying Amount	1,093	907
Total intangible assets
Carrying amount	1,093	907
Impairment of intangible assets	267	124
Non-cash intangible asset impairment charge, after tax	168	78
Non-cash intangible asset impairment charge, per diluted share (in dollars per share)	$ 0.02	$ 0.01
Intangible assets reclassified from indefinite lives to definite lives	826	783
Weighted-average amortization period	15 years	13 years
Trademarks/tradenames/patents
Intangible assets subject to amortization:
Gross Carrying Amount	5,418	3,819
Accumulated Amortization	(1,480)	(1,053)
Net Carrying Amount	3,938	2,766
Weighted-Average Amortization Period	11 years
Total intangible assets
Weighted-average amortization period	11 years
Estimated future amortization expense related to intangible assets
Net Carrying Amount	3,938	2,766
Customer relationships/distribution rights/ non-compete agreements
Intangible assets subject to amortization:
Gross Carrying Amount	16,517	11,141
Accumulated Amortization	(7,390)	(5,150)
Net Carrying Amount	9,127	5,991
Weighted-Average Amortization Period	7 years
Total intangible assets
Weighted-average amortization period	7 years
Estimated future amortization expense related to intangible assets
Net Carrying Amount	9,127	5,991
Developed software and technology
Intangible assets subject to amortization:
Gross Carrying Amount	772	772
Accumulated Amortization	$ (772)	$ (772)
Weighted-Average Amortization Period	5 years
Total intangible assets
Weighted-average amortization period	5 years