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Financial Derivative Instruments (Details) - Cash Flow Hedging - Designated as Hedging Instrument - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
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June 28, 2016 |  |
Derivative [Line Items] |  |
Notional Amount | $ 30,000,000 |
Fixed Rate Paid | 0.94% |
Fair Value | $ 1,049,000 | $ 0
June 27, 2016 |  |
Derivative [Line Items] |  |
Notional Amount | $ 20,000,000 |
Fixed Rate Paid | 0.893% |
Fair Value | $ 741,000 | 0
Interest Rate Swap |  |
Derivative [Line Items] |  |
Notional Amount | 50,000,000 |
Fair Value | $ 1,790,000 | $ 0

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