SUBSEQUENT EVENTS (Details) - USD ($)					3 Months Ended	12 Months Ended
	Apr. 20, 2020	Apr. 13, 2020	Apr. 01, 2020	Jul. 09, 2019	Mar. 31, 2020	Dec. 31, 2019
SUBSEQUENT EVENTS [Line Items]
Number of shares issued					3,627,760
Average selling price					$ 5.80
Net proceeds from issuance of stock					$ 20,422,000
Subsequent event
SUBSEQUENT EVENTS [Line Items]
Loan Proceeds From Payroll Protection Program		$ 1,411,000
Jefferies LLC and B. Riley FBR, Inc [Member]
SUBSEQUENT EVENTS [Line Items]
Number of shares issued					3,421,237	191,244
Average selling price					$ 5.89	$ 4.11
Net proceeds from issuance of stock					$ 19,542,000	$ 762,000
Additional aggregate offering price				$ 25,000,000
Jefferies LLC and B. Riley FBR, Inc [Member] | Subsequent event
SUBSEQUENT EVENTS [Line Items]
Number of shares issued			15,279
Average selling price			$ 8.02
Net proceeds from issuance of stock			$ 119,000
Additional aggregate offering price	$ 25,000,000		$ 25,000,000