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COMMITMENTS, CONTINGENCIES, AND RELATED PARTY TRANSACTIONS: (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2015 | Sep. 30, 2014
Lease Obligations |  |
Rents charged to expense under operating leases | $ 5,300,000 | $ 5,000,000
Minimum future lease commitments |  |
2016 | 4,790,387 |
2017 | 3,607,560 |
2018 | 3,184,076 |
2019 | 2,390,650 |
2020 | 1,687,248 |
Thereafter | 1,399,456 |
Total minimum lease payments | 17,059,377 |
Self-insured liabilities reserve |  |
Beginning balance | 1,400,000 | 1,300,000
Charged to expense | 4,800,000 | 6,300,000
Payments | 4,600,000 | 6,200,000
Ending balance | 1,600,000 | 1,400,000
TIP Properties, LLC | Retail Segment |  |
Lease Obligations |  |
Annual rental payments related to warehouse space from TIP Properties, LLC | $ 100,000 | $ 100,000

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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