Income Taxes (Tables)

12 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended September 30,
	2019			2018			2017
Federal:
Current	$	(1,330	)	$	(2,345	)	$	(3,092	)
Deferred	5,908			38,744			6,384
State:
Current	2,312			1,536			1,432
Deferred	(227		)	216			487
Total provision for income taxes	$	6,663		$	38,151		$	5,211

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended September 30,
	2019			2018			2017
Provision at the statutory rate (1)	$	8,430		$	5,973		$	6,582
Increase resulting from:
Non-deductible expenses	1,277			1,241			1,173
State income taxes, net of federal deduction	2,009			1,193			1,003
Change in valuation allowance	—			1,761			142
Rate change	—			31,333			—
Other	—			183			17
Decrease resulting from:
Share-based compensation	(556		)	(238		)	(207		)
Change in valuation allowance	(83		)	—			—
Contingent tax liabilities	(3,967		)	(1,908		)	(3,499		)
State deferred true up	—			(1,387		)	—
Other	(447		)	—			—
Total provision for income taxes	$	6,663		$	38,151		$	5,211

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	Year Ended September 30,
	2019		2018
Deferred income tax assets:
Allowance for doubtful accounts	$	245	$	207
Accrued expenses	9,783		8,054
Net operating loss carryforward	39,045		46,881
Various reserves	1,396		1,172
Equity losses in affiliate	119		119
Share-based compensation	672		665
Capital loss carryforward	74		94
Other	1,137		712
Subtotal	52,471		57,904
Less valuation allowance	4,044		4,127
Total deferred income tax assets	48,427		53,777
Deferred income tax liabilities:
Property and equipment	840		1,122
Intangible assets	5,978		5,499
Other	735		576
Total deferred income tax liabilities	7,553		7,197
Net deferred income tax assets	$	40,874	$	46,580

Summary of Income Tax Contingencies [Table Text Block]

	Year Ended September 30,
	2019		2018
Balance at beginning of period	$	30,256	$	51,968
Additions for position related to current year	93		13
Additions for positions of prior years	19		272
Reduction resulting from the lapse of the applicable statutes of limitations	4,074		3,361
Reduction resulting from rate change	—		18,636
Balance at end of period	$	26,294	$	30,256