LEASES - Future Minimum Lease Payments (Details) - USD ($)	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating leases, estimated future minimum lease payments
Remainder of 2019	$ 64,000
2020	242,000
2021	241,000
2022	48,000
2023	35,000
Thereafter	17,000
Total lease obligations	647,000
Less: Amount representing interest	(67,000)
Present value of net minimum lease obligations	580,000	$ 750,000
Less, current portion	(210,000)
Long term portion	370,000
Finance leases, estimated future minimum lease payments
Remainder of 2019	24,000
2020	62,000
2021	38,000
2022	32,000
2023	27,000
Thereafter	41,000
Total lease obligations	224,000
Less: Amount representing interest	(33,000)
Finance Lease, Liability, Total	191,000
Less, current portion	(65,000)		$ (57,000)
Long term portion	126,000		$ 155,000
Remainder of 2019	88,000
2020	304,000
2021	279,000
2022	80,000
2023	62,000
Thereafter	58,000
Total lease obligations	871,000
Less: Amount representing interest	(100,000)
Total lease liabilities	771,000
Less, current portion	(275,000)
Long term portion	$ 496,000