Derivative Instruments; Fair Value (Details 1) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments under Statement 133	Interest Rate Contracts
Balance Sheet Location	Accrued Liabilities	Accrued Liabilities
Fair Value	$ 41,000	$ 60,000

Description of where the interest rate derivatives not designated as hedging instruments are reported in the balance sheet.

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=7476318&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

-URI http://asc.fasb.org/extlink&oid=7476318&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

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