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Derivative Instruments and Hedging Activity (Tables) | 6 Months Ended
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Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] | The Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (in thousands, except number of instruments):
|  | Number of Instruments |  | Notional |
|  | June 30, |  | December 31, |  | June 30, |  | December 31, |
Interest Rate Derivatives |  | 2018 |  | 2017 |  | 2018 |  | 2017 |
Interest Rate Swap |  | 4 |  | 5 |  | $ | 158,924 |  | $ | 184,304 |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | The table below presents the estimated fair value of the Company’s derivative financial instruments, as well as their classification in the consolidated balance sheets (in thousands).
|  | Asset Derivatives |
|  | June 30, 2018 |  | December 31, 2017 |
|  | Fair Value |  | Fair Value |
Derivatives designated as cash flow hedges: |  |  |  |  |  |  |
Interest Rate Swaps |  | $ | 4,062 |  | $ | 1,592 |
|  | Liability Derivatives |
|  | June 30, 2018 |  | December 31, 2017 |
|  | Fair Value |  | Fair Value |
Derivatives designated as cash flow hedges: |  |  |  |  |  |  |
Interest Rate Swaps |  | $ | - |  | $ | 242 |
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The table below displays the effect of the Company’s derivative financial instruments in the consolidated statements of operations and other comprehensive loss for the three and six months ended June 30, 2018 and 2017 (in thousands).
|  | Derivatives in Cash Flow Hedging Relationships |  | Amount of Income/(Loss) Recognized in OCI on Derivative (Effective Portion) |  | Location of Income/(Loss) Reclassifed from Accumulated OCI into Income (Effective Portion) |  | Amount of Income/(Loss) Reclassified from Accumulated OCI into Expense (Effective Portion) |
Three months ended June 30 |  |  |  |  | 2018 |  |  | 2017 |  |  |  |  | 2018 |  |  | 2017 |
|  | Interest rate swaps |  | $ | 792 |  | $ | (411) |  | Interest Expense |  | $ | (4) |  | $ | (435) |
Six months ended June 30 |  |  |  |  | 2018 |  |  | 2017 |  |  |  |  | 2018 |  |  | 2017 |
|  | Interest rate swaps |  | $ | 2,712 |  | $ | 330 |  | Interest Expense |  | $ | (91) |  | $ | (900) |
Offsetting Assets And Liabilities [Table Text Block] | The gross amounts of derivative assets or liabilities can be reconciled to the Tabular Disclosure of Fair Values of Derivative Instruments above, which also provides the location that derivative assets and liabilities are presented on the consolidated balance sheets (in thousands):
Offsetting of Derivative Assets |
As of June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Assets |  | Gross Amounts Offset in the Statement of Financial Position |  | Net Amounts of Assets presented in the statement of Financial Position |  | Financial Instruments |  | Cash Collateral Received |  | Net Amount |
Derivatives |  | $ | 4,062 |  | $ | - |  | $ | 4,062 |  | $ | - |  | $ | - |  | $ | 4,062 |
Offsetting of Derivative Liabilities |
As of June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Liabilities |  | Gross Amounts Offset in the Statement of Financial Position |  | Net Amounts of Liabilities presented in the statement of Financial Position |  | Financial Instruments |  | Cash Collateral Received |  | Net Amount |
Derivatives |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | - |
Offsetting of Derivative Assets |
As of December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Assets |  | Gross Amounts Offset in the Statement of Financial Position |  | Net Amounts of Assets presented in the statement of Financial Position |  | Financial Instruments |  | Cash Collateral Received |  | Net Amount |
Derivatives |  | $ | 1,592 |  | $ | - |  | $ | 1,592 |  | $ | (42) |  | $ | - |  | $ | 1,550 |
Offsetting of Derivative Liabilities |
As of December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Liabilities |  | Gross Amounts Offset in the Statement of Financial Position |  | Net Amounts of Liabilities presented in the statement of Financial Position |  | Financial Instruments |  | Cash Collateral Received |  | Net Amount |
Derivatives |  | $ | 242 |  | $ | - |  | $ | 242 |  | $ | (42) |  | $ | - |  | $ | 200 |

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- Definition Tabular disclosure of the effective portion of gains and losses on derivative instruments (and nonderivative instruments) designated and qualifying in cash flow hedges recorded in accumulated other comprehensive income (loss) during the term of the hedging relationship and reclassified into earnings during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
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