Consolidated Statements of Operations (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Operations [Abstract]
Rental income	$ 19,458,581	$ 19,181,530
Fee and other income	443,829netr_FeeAndOtherIncome	381,592netr_FeeAndOtherIncome
Total Revenues	19,902,410us-gaap_Revenues	19,563,122us-gaap_Revenues
Costs and expenses:
Rental operating costs	7,465,658	6,382,425
General and administrative expenses	5,555,449us-gaap_GeneralAndAdministrativeExpense	5,443,652us-gaap_GeneralAndAdministrativeExpense
Depreciation and amortization	6,049,385	5,309,560
Real Estate Asset impairments	950,000us-gaap_AssetImpairmentCharges	2,000,000us-gaap_AssetImpairmentCharges
Total costs and expenses	20,020,492us-gaap_OperatingExpenses	19,135,637us-gaap_OperatingExpenses
Income from operations	(118,082)netr_IncomeLossFromOperations	427,485netr_IncomeLossFromOperations
Other income (expense) [Abstract]
Interest expense debt	(6,478,976)us-gaap_InterestExpenseDebt	(5,059,912)us-gaap_InterestExpenseDebt
Interest income	85,806us-gaap_InterestIncomeOperating	116,602us-gaap_InterestIncomeOperating
Gain on sales of real estate and partnerships, net	5,120,699us-gaap_GainLossOnSaleOfBusiness	1,992,754us-gaap_GainLossOnSaleOfBusiness
Gains (Losses) on extinguishment of debt	536,952	0
Total other expense, net	(735,519)us-gaap_NonoperatingIncomeExpense	(2,950,556)us-gaap_NonoperatingIncomeExpense
Loss from continuing operations	(853,601)	(2,523,071)
Income attributable to noncontrolling interests	(3,192,082)	(1,566,023)
Net loss	$ (4,045,683)	$ (4,089,094)
Basic and diluted loss per common share:
Loss per share - basic and diluted (in dollars per share)	$ (0.24)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.25)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of common shares outstanding - basic and diluted (in shares)	16,798,232	16,170,865

Fees charged for the acquisition of model homes and other income

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