LEASES - Future Minimum Lease Payments (Details) - USD ($)	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating leases, estimated future minimum lease payments
2020	$ 242,000
2021	241,000
2022	48,000
2023	35,000
2024	17,000
Total lease obligations	583,000
Less: Amount representing interest	(57,000)
Present value of net minimum lease obligations	526,000	$ 750,000
Less, current portion	(209,000)
Long term portion	317,000
Finance leases, estimated future minimum lease payments
2020	62,000
2021	38,000
2022	32,000
2023	28,000
2024	27,000
Thereafter	13,000
Total lease obligations	200,000
Less: Amount representing interest	(29,000)
Finance Lease, Liability, Total	171,000
Less, current portion	(52,000)		$ (57,000)
Long term portion	119,000		$ 155,000
2020	304,000
2021	279,000
2022	80,000
2023	63,000
2024	44,000
Thereafter	13,000
Total lease obligations	783,000
Less: Amount representing interest	(86,000)
Total lease liabilities	697,000
Less, current portion	(261,000)
Long term portion	$ 436,000