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EQUITY INCENTIVE PLAN (Narrative) (Details) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended
EQUITY INCENTIVE PLAN (Narrative) (Details) - USD ($)	Jan. 01, 2020	Jan. 01, 2019	Jan. 31, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation				$ 100,000	$ 100,000	$ 300,000	$ 300,000
Unrecognized compensation expense related to unvested stock awards				2,000,000		$ 2,000,000
Unvested stock options, unrecognized compensation expense weighted average recognition period						2 years 1 month 6 days
Accrued expenses				$ 1,497,000		$ 1,497,000		$ 1,268,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, expected to vest, outstanding (in shares)				662,910		662,910
Stock options, expected to vest, outstanding, aggregate intrinsic value				$ 0		$ 0
Stock options, expected to vest remaining contractual term						8 years 8 months 12 days
Equity Incentive Plan 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized	394,905	114,937	359,300
Maximum number of shares per employee			66,666
Award plan, percentage of outstanding stock maximum			5.00%
Equity Incentive Plan 2017 [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan expiration date						Jun. 05, 2027
Number of shares authorized				44,444		44,444