CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 29,905	$ 16,934	$ 56,016	$ 33,493
Direct expenses	23,504	13,710	43,804	27,352
Gross margin	6,401	3,224	12,212	6,141
General and administrative expenses	4,008	2,513	8,729	5,028
Depreciation and amortization	554	22	755	42
Income from operations	1,839	689	2,728	1,071
Other income (expense), net	(255)	(127)	(619)	(702)
Income before income taxes	1,584	562	2,109	369
Income tax expense (benefit), net	605	225	806	148
Net income	$ 979	$ 337	$ 1,303	$ 221
Net income per share, basic (in dollars per share)	$ 0.09	$ 0.04	$ 0.12	$ 0.02
Net income (loss) per share - diluted (in dollars per share)	$ 0.08	$ 0.03	$ 0.10	$ 0.02
Weighted average common shares outstanding
Basic (in shares)	11,249	9,717	11,225	9,642
Diluted (in shares)	12,745	10,666	12,713	10,540