CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue	$ 38,700	$ 36,131	$ 106,208	$ 100,747
Direct expenses	28,777	27,793	80,424	78,429
Gross margin	9,923	8,338	25,784	22,318
General and administrative expenses	6,072	5,136	15,782	14,700
Transaction expenses	1,247	0	1,391	0
Depreciation and amortization	914	588	2,037	1,654
Income from operations	1,690	2,614	6,574	5,964
Interest expense, net	562	262	1,284	801
Income before income taxes	1,128	2,352	5,290	5,163
Income tax expense	325	738	1,532	5,084
Net income	$ 803	$ 1,614	$ 3,758	$ 79
Net income per share, basic (in dollars per share)	$ 0.07	$ 0.14	$ 0.31	$ 0.01
Net income per share - diluted (in dollars per share)	$ 0.06	$ 0.13	$ 0.29	$ 0.01
Weighted average common stock outstanding
Basic (in shares)	12,036	11,899	12,011	11,875
Diluted (in shares)	13,077	12,884	13,048	12,872