Consolidated and Combined Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ (464)	$ 884
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,376	2,117
Gain on asset dispositions	(122)	(923)
Stock-based compensation	59	56
Net changes in operating assets and liabilities:
Accounts receivable	294	182
Inventory of parts and supplies	42	5
Prepaid expenses	297	631
Other assets	(2)	5
Accounts payable and accrued liabilities	(1,319)	564
Income taxes payable and receivable	(196)	248
Operating lease assets and liabilities, net	(296)	0
Long-term insurance liabilities and other long-term liabilities	9	(3)
Net cash provided by operating activities	678	3,766
Cash flows from investing activities:
Purchase of property and equipment	(2,285)	(1,661)
Business acquisition	(1,000)	0
Proceeds from the sale of property, plant and equipment	514	1,432
Net cash used in investing activities	(2,771)	(229)
Cash flows from financing activities:
Decrease in bank overdrafts	0	(625)
Debt issue costs	0	(9)
Net cash used in financing activities	0	(634)
Net (decrease) increase in cash and cash equivalents	(2,093)	2,903
Cash and cash equivalents at beginning of period	21,216	17,299
Cash and cash equivalents at end of the period	$ 19,123	$ 20,202