Note 5 - Debt - Debt (Details) - USD ($)	Jun. 30, 2019	Sep. 30, 2018	Mar. 31, 2014
Long-term debt, gross	$ 458,558,000	$ 484,859,000
Interest rate
Unamortized debt issue costs	$ (12,601,000)	(17,055,000)
Interest rate
Less current maturities of long-term debt	$ 3,931,000	7,027,000
Total long-term debt	442,026,000	460,777,000
First Lien Credit Facility [Member]
Long-term debt, gross
Interest rate	6.10%
Interest rate	(6.10%)
First Lien Term Loan [Member]
Long-term debt, gross		6,303,000
Interest rate	8.50%
Interest rate	(8.50%)
Total long-term debt	$ 0
Senior Secured Notes [Member]
Long-term debt, gross	$ 374,420,000	385,000,000
Interest rate	9.50%		9.50%
Interest rate	(9.50%)		(9.50%)
Second Lien Term Loan [Member]
Long-term debt, gross	$ 84,138,000	$ 93,556,000
Interest rate	12.00%
Interest rate	(12.00%)
Total long-term debt	$ 84,138,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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