CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenue	$ 57,852	$ 52,238
Contract costs	46,005	41,340
General and administrative costs	6,150	5,913
Depreciation and amortization	2,062	1,859
Total operating costs	54,217	49,112
Income from operations	3,635	3,126
Interest expense, net	1,080	941
Income before income taxes	2,555	2,185
Income tax expense	741	634
Net income	$ 1,814	$ 1,551
Net income per share - basic (in dollars per share)	$ 0.15	$ 0.13
Net income per share - diluted (in dollars per share)	$ 0.13	$ 0.12
Weighted average common stock outstanding
Basic (in shares)	12,498	12,088
Diluted (in shares)	13,445	13,014