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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Other Items Allocated to Comprehensive Income/Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Unrealized holding gains (losses) arising during period on:    
Available-for-sale investments before tax $ 49 $ 229
Tax benefit (expense) (21) (85)
Available-for-sale investments after tax 28 144
Reclassification adjustment for net gains realized on available-for-sale investments before tax (72) (42)
Tax benefit (expense) 29 17
Reclassification adjustment for net gains realized on available-for-sale investments after tax (43) (25)
Defined benefit pension plan before tax (242) (670)
Tax benefit (expense) 97 268
Defined benefit pension plan after tax (145) (402)
Other comprehensive loss, net before tax (265) (483)
Tax benefit (expense), Total 105 200
Other comprehensive gain (loss), net $ (160) $ (283)