Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 19,049	$ 6,661
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,808	3,226
Deferred taxes	(9,659)
Amortization of debt discount and issuance costs	384	128
Deferred rent	149	110
Loss on sale of assets	140	212
Impairment of assets	1,550
Gain on insurance	(20)
Debt prepayment penalty	543	75
Changes in operating assets and liabilities:
Accounts receivable	(2,033)	1,839
Inventories	(283)	(41)
Prepaid expenses and other assets	704	731
Accounts payable and accrued liabilities	(255)	(1,911)
Net cash provided by operating activities	14,077	11,030
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of assets	632	2,047
Proceeds from insurance	20
Proceeds from notes receivable	68	55
Additions to property and equipment	(9,011)	(5,680)
Net cash used in investing activities	(8,291)	(3,578)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from long-term debt	62,453	2,564
Payments on long-term debt	(63,518)	(6,179)
Debt prepayment penalty	(543)	(75)
Purchase of treasury stock		(1,099)
Payment of dividends	(583)	(584)
Payment of loan origination costs	(909)	(99)
Distribution to noncontrolling interests	(108)	(108)
Net cash used in financing activities	(3,208)	(5,580)
NET INCREASE IN CASH AND CASH EQUIVALENTS	2,578	1,872
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	9,922	11,327
CASH AND CASH EQUIVALENTS AT END OF PERIOD	12,500	13,199
CASH PAID DURING PERIOD FOR:
Interest	4,966	3,788
Income taxes (net of refund of $42 and $1,017, respectively)	1,903	73
Non-cash transactions:
Refinanced long-term debt	81,200
New note and repaid worth of debt	18,700
Borrowed from lender to purchase an aircraft	7,100
Refinancing of bank note	1,900
Refinancing of construction loan	$ 4,700
Refinancing of long term debt by borrowing		8,000
Proceeds from borrowing		9,900
Net cash proceeds from borrowing for refinance		1,900
Cost of common shares purchased and retired		$ 1,100