OTHER ASSETS (Details)	12 Months Ended
	Dec. 31, 2018 USD ($) installment building property	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Income properties
Income Property Tenant Receivables	$ 627,691	$ 895,476
Income Property Straight-line Rent Adjustment	4,304,279	2,517,195
Income Property Lease Incentive	2,394,246	2,696,678
Interest Receivable from Commercial Loan Investments		38,078
Cash Flow Hedge	651,722	606,621
Infrastructure Reimbursement Receivables	1,847,375	2,213,305
Deferred Deal Costs	425,476	480,257
Prepaid Expenses, Deposits, and Other	2,634,664	2,773,047
Total Other Assets	$ 12,885,453	12,220,657
Number of real estate properties | property	4
Deal Costs for Completed Transactions	$ 380,000	717,000	$ 243,000
Deal Costs for Incomplete Transactions	150,000	$ 15,000	$ 10,000
Tanger
Income properties
Infrastructure Reimbursement Receivables	$ 1,400,000
Number of installments to repay infrastructure reimbursement receivable | installment	8
Infrastructure reimbursement receivables, installment payment amounts	$ 175,000
Infrastructure reimbursement receivable, discount	153,000
Sam's Club
Income properties
Infrastructure Reimbursement Receivables	$ 660,000
Number of installments to repay infrastructure reimbursement receivable | installment	6
Infrastructure reimbursement receivables, installment payment amounts	$ 110,000
Infrastructure reimbursement receivable, discount	60,000
Hilton Grand Vacations
Income properties
Income Property Lease Incentive	$ 2,400,000
Number of real estate properties | building	2
Funding for tenant improvements	$ 2,700,000
Accumulated amortization	$ 353,000