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RECEIVEABLES FROM BROKER-DEALERS AND CLEARING ORGANIZATIONS AND OTHER RECEIVABLES (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Sep. 30, 2016
Brokers and Dealers [Abstract]    
Receivables from broker-dealers and clearing organizations $ 2,858 $ 3,357
Other receivables, net 3,868 5,430
Allowance for doubtful accounts $ 620 $ 735