LEASES - Narrative (Details)		9 Months Ended
	Jan. 01, 2019 USD ($) item	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 750,000	$ 574,000
Lease liabilities	$ 750,000	580,000
Operating leases		144,000
Right-of-use assets obtained in exchange for lease obligations		$ 750,000
Minimum
Lessee, Lease, Description [Line Items]
Facility leases | item	1
Renewal term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	5 years
ASU 2016-02
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 700,000
Lease liabilities	700,000
Increase (decrease) in deferred rent and prepaid expenses	(6,000)
Current prepaid expense	6,000
Cumulative effect adjustment	$ 0