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Financial Derivative Instruments (Schedule of Notional Amounts of Outstanding Derivative Positions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Unamortized Premium	$ 4,514	$ 4,564
Fair Value	1,748	2,069
Interest Rate Cap 1 [Member]
Derivative [Line Items]
Notional Amount	$ 25,000	$ 25,000
Termination Date	Jun. 02, 2021	Jun. 02, 2021
3-month LIBOR Strike Rate	3.00%	3.00%
Premium Paid	$ 922	$ 922
Unamortized Premium	901	920
Fair Value	228	291
Interest Rate Cap 2 [Member]
Derivative [Line Items]
Notional Amount	$ 20,000	$ 20,000
Termination Date	Jun. 04, 2024	Jun. 04, 2024
3-month LIBOR Strike Rate	3.00%	3.00%
Premium Paid	$ 1,470	$ 1,470
Unamortized Premium	1,453	1,470
Fair Value	553	637
Interest Rate Cap 3 [Member]
Derivative [Line Items]
Notional Amount	$ 20,000	$ 20,000
Termination Date	Oct. 21, 2021	Oct. 21, 2021
3-month LIBOR Strike Rate	3.00%	3.00%
Premium Paid	$ 632	$ 632
Unamortized Premium	626	632
Fair Value	209	269
Interest Rate Cap 4 [Member]
Derivative [Line Items]
Notional Amount	$ 25,000	$ 25,000
Termination Date	Oct. 21, 2024	Oct. 21, 2024
3-month LIBOR Strike Rate	3.00%	3.00%
Premium Paid	$ 1,542	$ 1,542
Unamortized Premium	1,534	1,542
Fair Value	$ 758	$ 872

X

- Definition

Derivative, Premium

+ References

No definition available.

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- Definition

Derivative , Unamortized Premium

+ References

No definition available.

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X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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X

- Definition

Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

+ References

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X

- Definition

Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226006-175313

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

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