Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ (6,312)	$ 20,445	$ 20,960
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	8,836	9,072	7,722
Deferred tax expense (benefit)	(1,268)	821	(6,775)
Loss (gain) on sale of businesses and assets	(777)	(2,966)	2,162
Impairment of assets	10,615	6,040	5,570
Amortization of debt discount and issuance costs	236	334	560
Doubtful accounts expense on notes receivable	602
Unrealized loss on equity securities	64	612
Loss (gain) on insurance	596	(288)	(20)
Noncash lease expense	1,660
Deferred rent expense		282	203
Debt prepayment penalty			543
Changes in operating assets and liabilities:
Accounts receivable	(294)	457	(3,622)
Inventories	226	(216)	(199)
Prepaid insurance, other current assets and other assets	1,633	(681)	(2,589)
Accounts payable and accrued liabilities	(185)	3,262	1,254
Net cash provided by operating activities	15,632	37,174	25,769
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of businesses and assets	2,221	7,223	811
Proceeds from notes receivable	1,576	158	127
Proceeds from insurance	945	100	20
Issuance of notes receivable		(420)
Payments for property and equipment and intangible assets	(5,736)	(20,708)	(25,263)
Acquisition of businesses, net of cash acquired		(13,500)	(2,034)
Net cash used in investing activities	(994)	(27,147)	(26,339)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from long-term debt	6,503	13,511	84,233
Payments on long-term debt	(8,832)	(22,924)	(72,830)
Purchase of treasury stock	(9,484)	(2,901)
Payment of dividends	(1,286)	(1,252)	(1,168)
Payment of loan origination costs		(20)	(1,138)
Debt prepayment penalty			(543)
Distribution to noncontrolling interests	(31)	(70)	(180)
Net cash provided by (used in) financing activities	(13,130)	(13,656)	8,374
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	1,508	(3,629)	7,804
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	14,097	17,726	9,922
CASH AND CASH EQUIVALENTS AT END OF YEAR	15,605	14,097	17,726
CASH PAID DURING YEAR FOR:
Interest paid, net of amounts capitalized	8,695	9,797	9,685
Income taxes paid (net of refunds of $153, $42, and $42 in 2020, 2019, and 2018, respectively)	2,200	3,686	5,832
Non-cash investing and financing transactions:
Debt incurred with seller in connection with acquisition of businesses		12,000	1,000
Notes receivable received as proceeds from sale of assets		1,775
Unrealized gain on marketable securities			305
Accounts receivable converted to notes receivable	122
Refinanced long-term debt	11,292	400	8,354
Net increase in notes payable from trade-in of aircraft			5,063
Operating lease right-of-use assets established upon adoption of ASC 842	27,310
Deferred rent liabilities reclassified upon adoption of ASC 842	1,241
Operating lease liabilities established upon adoption of ASC 842	28,551
Unpaid liabilities on capital expenditures	$ 29	$ 476