CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 209,185	$ 160,391
Contract costs	163,596	124,551
General and administrative costs	24,195	20,525
Acquisition costs	930	1,391
Depreciation and amortization	7,003	3,956
Total operating costs	195,724	150,423
Income from operations	13,461	9,968
Interest expense, net	3,441	2,473
Income before income taxes	10,020	7,495
Income tax expense	2,906	2,171
Net income	$ 7,114	$ 5,324
Earnings Per Share [Abstract]
Net income per share - basic (in dollars per share)	$ 0.58	$ 0.44
Net income per share - diluted (in dollars per share)	$ 0.54	$ 0.41
Weighted average common shares outstanding
Basic (in shares)	12,282	12,018
Diluted (in shares)	13,105	13,041