Business Combinations - Pro Forma Results (Details) - Dayna International, LLC - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Revenue	$ 30,411	$ 26,828	$ 92,164	$ 83,359
Net income	$ 1,416	$ 415	$ 2,618	$ 657
Number of shares outstanding - basic (in shares)	$ 11,123,000	$ 10,933,000	$ 11,051,000	$ 10,961,000
Number of shares outstanding - diluted (in shares)	12,280,000	11,337,000	12,094,000	11,371,000
Basic earnings per share (in dollars per share)	0.13	0.04	0.24	0.06
Diluted earnings per share (in dollars per share)	$ 0.12	$ 0.04	$ 0.22	$ 0.06