Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Details of Amounts Due to Related Parties on Our Accompanying Condensed Consolidated Balance Sheets (Detail)

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Related-Party Transactions - Details of Amounts Due to Related Parties on Our Accompanying Condensed Consolidated Balance Sheets (Detail) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Related Party Transactions [Abstract]    
Management fee due to Adviser $ 295,748land_ManagementFeeDueToAdvisor $ 301,487land_ManagementFeeDueToAdvisor
Credits to fees due to Adviser (320,905)land_CreditsToFeesDueToAdviser  
Other due to Adviser 11,707land_OtherDueToAdvisor 3,187land_OtherDueToAdvisor
Total due (from) to Adviser (13,450)land_DueFromToAdviser 304,674land_DueFromToAdviser
Administration fee due to Administrator 130,936land_AdministrativeFeeDueToAdministrator 166,427land_AdministrativeFeeDueToAdministrator
Total due to Administrator 130,936land_FeeDueToAdministrator 166,427land_FeeDueToAdministrator
Total due to related parties $ 117,486us-gaap_DueToRelatedPartiesCurrentAndNoncurrent [1] $ 471,101us-gaap_DueToRelatedPartiesCurrentAndNoncurrent [1]
[1] Refer to Note 4, "Related-Party Transactions," for additional information.