SEGMENT INFORMATION - Reconciliation of Segment Assets (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 286,542,879	$ 284,588,797	$ 289,829,000
Operating Segments [Member] | Asset Management Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,500,000	1,632,000	2,095,000
Operating Segments [Member] | Investment Portfolio Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	269,186,000	267,429,000	267,004,000
Corporate, Non-Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 15,857,000	$ 15,528,000	$ 20,730,000