Derivative Instruments (Schedule of Fair Value of Derivative Instruments) (Details) (Not Designated as Hedging Instrument [Member], USD $)	Jun. 30, 2014	Dec. 31, 2013
Interest Rate Swaption [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value	$ 368,136
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value	(442,585)	284,454
Exchangeable Senior Notes Conversion Option [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value	$ (1,107,544)	$ (1,471,607)

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Name:	us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant