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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Numerator:
Income continuing operations	$ 2,357	$ 3,131
Income from discontinued operations, after income taxes	0	3,319
Net income	$ 2,357	$ 6,450
Denominator:
Denominator for basic net income per common share — weighted average shares outstanding	26,175,000	25,331,000
Effect of dilutive securities:
Stock options and restricted stock units	797,000	840,000
Denominator for diluted net income per common share — adjusted weighted average shares	26,972,000	26,171,000
Basic net income per common share:
Continuing operations, basic (USD per share)	$ 0.09	$ 0.12
Discontinued operations, basic (USD per share)	0.00	0.13
Net income, basic (USD per share)	0.09	0.25
Diluted net income per common share
Continuing operations, diluted (USD per share)	0.09	0.12
Discontinued operations, diluted (USD per share)	0.00	0.13
Net income, diluted (USD per share)	$ 0.09	$ 0.25
Potentially dilutive securities excluded from computation of earnings per share	1,108,900	902,084

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

+ Details

Name:	us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration