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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Amortization (Details)
$ in Millions
12 Months Ended
Sep. 30, 2017
USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Amortization $ 1.1
Expected annual amortization in next fiscal year 3.4
Expected annual amortization in year two 3.4
Expected annual amortization in year three 3.4
Expected annual amortization in year four 3.4
Expected annual amortization in year five $ 3.4