Leases - Additional Information (Detail) (USD $)	9 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Operating Leased Assets [Line Items]
Operating lease revenues collected	$ 731,393
Rents and other receivables	$ 260,713	$ 470,478
Maximum [Member]
Operating Leased Assets [Line Items]
Original lease terms of properties	20 years
Minimum [Member]
Operating Leased Assets [Line Items]
Original lease terms of properties	5 years

The cash inflow associated with the collection of receivables arising from the lease of real estate, equipment or other fixed assets for a specified time in exchange for payment, usually in the form of rent; excludes proceeds from sales-type lease transactions, which are classified as operating activities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

Name:	us-gaap_ProceedsFromCollectionOfLeaseReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration