RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($)			3 Months Ended		6 Months Ended
	May 08, 2019	Apr. 24, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	May 07, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Interest and fee income					$ 30,000
Bridge loan							$ 3,000,000
Organization and offering expenses			$ 2,796,198		$ 2,796,198
Ownership percentage (as a percent)			20.00%		20.00%
Disposition fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					3.00%
Acquisition fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					2.00%
Asset management fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					0.05%
Expenses from transactions with related party			$ 217,445	$ 201,996	$ 419,224	$ 403,965
Financing fee
Related Party Transaction [Line Items]
Related party transaction (as a percent)					1.00%
Property management fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					1.50%
Expenses from transactions with related party			$ 25,496	$ 24,518	$ 51,097	$ 48,907
Leasing Commission Fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					3.00%
Operating Expenses
Related Party Transaction [Line Items]
Expense reimbursement percentage (as a percent)					2.00%
Expense reimbursement percentage to net income (as a percent)					25.00%
Advisor or Affiliates \| Disposition fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					3.00%
Advisor or Affiliates \| Leasing Commission Fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					6.00%
Board of Directors Chairman
Related Party Transaction [Line Items]
Related party transaction (as a percent)		10.00%
Due from (to) related party		$ (200,000)
Interest expense	$ 768
Maximum \| Disposition fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					6.00%
Maximum \| Acquisition fees
Related Party Transaction [Line Items]
Related party transaction (as a percent)					6.00%
Chevron Gas Station
Related Party Transaction [Line Items]
Acquisition fees					$ 20,000
Percentage of share in property owned (as a percent)					29.86%
Rich Uncles Nnn Reit Inc
Related Party Transaction [Line Items]
Investment owned			403,980		403,980			403,980
Ownership percentage (as a percent)			4.80%		4.80%			4.80%

Rich Uncles Real Estate Investment Trust I 10-Q