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Financial Derivative Instruments (Details) - Cash Flow Hedging - Designated as Hedging Instrument - USD ($) | Sep. 30, 2017 | Sep. 30, 2016
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Interest Rate Swap June 28 2016 |  |
Derivative [Line Items] |  |
Notional Amount | $ 30,000,000 |
Fixed Rate Paid | 0.94% |
Fair Value | $ 934,000 | $ 28,000
Interest Rate Swap June 27 2016 |  |
Derivative [Line Items] |  |
Notional Amount | $ 20,000,000 |
Fixed Rate Paid | 0.893% |
Fair Value | $ 658,000 | 62,000
Interest Rate Swap |  |
Derivative [Line Items] |  |
Notional Amount | 50,000,000 |
Fair Value | $ 1,592,000 | $ 90,000

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