Business Combinations - Pro Forma Results (Details) - Dayna International, LLC - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Business Acquisition [Line Items]
Revenue	$ 29,905	$ 28,987	$ 56,016	$ 57,495
Net income	$ 979	$ 821	$ 1,303	$ 426
Number of shares outstanding - basic (in shares)	$ 11,249,000	$ 11,098,000	$ 11,225,000	$ 11,023,000
Number of shares outstanding - diluted (in shares)	12,745,000	12,047,000	12,713,000	11,921,000
Basic earnings per share (in dollars per share)	0.09	0.07	0.12	0.04
Diluted earnings per share (in dollars per share)	$ 0.08	$ 0.07	$ 0.10	$ 0.04

Business Combination, Pro Forma Results, Weighted Average Basic Shares Outstanding

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Business Combination, Pro Forma Results, Weighted Average Diluted Shares Outstanding

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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