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Derivative Financial Instruments (Location and Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Derivatives not designated as hedging instruments, fair value |  |
Fair value of interest rate swaps | $ 704 | $ 942
Interest rate swap contracts not designated as hedging instruments - liabilities, gross | 704 | 942
Effective portion of interest rate cash flow hedge, Fair Value included in accumulated other comprehensive income | 908 | 122
Interest Rate Cash Flow Hedge Asset at Fair Value | $ 908 |
Interest Rate Cash Flow Hedge Liability at Fair Value |  | $ 122
Accrued interest receivable and other assets |  |
Derivatives not designated as hedging instruments, fair value |  |
Description of location of interest rate derivative instruments not designated as hedging instruments on balance sheet | Accrued interest receivable and other assets | Accrued interest receivable and other assets
Description of Location of Interest Rate Cash Flow Hedge Derivative on Balance Sheet | Accrued interest receivable and other assets |
Accrued interest payable and other liabilities |  |
Derivatives not designated as hedging instruments, fair value |  |
Description of location of interest rate derivative instruments not designated as hedging instruments on balance sheet | Accrued interest payable and other liabilities | Accrued interest payable and other liabilities
Description of Location of Interest Rate Cash Flow Hedge Derivative on Balance Sheet |  | Accrued interest payable and other liabilities
Accumulated other comprehensive income |  |
Derivatives not designated as hedging instruments, fair value |  |
Description of Location of Interest Rate Cash Flow Hedge Derivative on Balance Sheet | Accumulated other comprehensive income (1) | Accumulated other comprehensive income (1)

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- Definition Description of where the interest rate derivatives designated as cash flow hedges are reported in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)(7)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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