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EQUITY INCENTIVE PLAN (Narrative) (Details) - USD ($)			1 Months Ended	3 Months Ended
EQUITY INCENTIVE PLAN (Narrative) (Details) - USD ($)	Jan. 01, 2020	Jan. 01, 2019	Jan. 31, 2018	Mar. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation				$ 200,000
Unrecognized compensation expense related to unvested stock awards				$ 2,200,000
Unvested stock options, unrecognized compensation expense weighted average recognition period				2 years 4 months 24 days
Accrued expenses				$ 1,289,000	$ 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)				662,674
Stock options, expected to vest, outstanding, aggregate intrinsic value				$ 0
Stock options, expected to vest remaining contractual term				8 years 10 months 24 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