CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Operating revenues	$ 94,785	$ 87,882	$ 81,268
Cost of operations:
Compensation and benefits	43,493	37,906	36,198
Fuel expenses	11,971	13,288	9,630
Repairs & tires	6,102	5,760	5,402
Other operating	3,125	3,027	3,270
Insurance and losses	7,064	8,167	7,261
Depreciation expense	5,410	5,537	6,654
Rents, tags & utilities	2,578	2,650	2,708
Sales, general & administrative	10,592	9,306	8,764
Corporate expenses	2,215	2,011	1,936
Gain on sale of terminal sites	0	(8,330)	(1,614)
Loss (gain) on disposition of PP&E	(1,047)	(739)	179
Total cost of operations	91,503	78,583	80,388
Total operating profit	3,282	9,299	880
Interest income and other	324	62	5
Interest expense	(18)	(18)	(27)
Income before income taxes	3,588	9,343	858
Provision for income taxes	915	2,153	233
Net income	$ 2,673	$ 7,190	$ 625
Earnings per common share:
Basic	$ 0.76	$ 2.08	$ 0.18
Diluted	$ 0.74	$ 1.98	$ 0.18
Number of shares (in thousands) used in computing:
-basic earnings per common share	3,515	3,459	3,395
-diluted earnings per common share	3,594	3,623	3,408