Derivative Financial Instruments and Hedging Activities (Details) - Cash Flow Hedging - Interest Rate Swap $ in Thousands	Mar. 31, 2019 USD ($) position	Dec. 31, 2018 USD ($) position
Derivative [Line Items]
Notional Amount	$ 28,500	$ 28,500
Positions \| position	3	3
Assets	$ 0	$ 0
Derivative - cash flow hedges	1,529	804
Cash Collateral Pledged	$ 1,500	$ 650

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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