REPURCHASE AGREEMENTS - Narrative (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Assets Sold under Agreements to Repurchase [Line Items]
Restricted Cash And Cash Equivalents At Carrying Value	$ 1,089,060	$ 1,292,687
Aggregate amount at risk will all counterparties	9,400,000	12,400,000
Repurchase Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Restricted Cash And Cash Equivalents At Carrying Value	$ 399,000	$ 230,000