Quarterly report pursuant to Section 13 or 15(d)

MANAGEMENT???S LIQUIDITY PLANS (Details)

v3.21.1
MANAGEMENT’S LIQUIDITY PLANS (Details) - USD ($)
$ in Thousands
3 Months Ended
Aug. 28, 2020
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
MANAGEMENT’S LIQUIDITY PLANS (Details) [Line Items]          
Working Capital (Deficit)   $ 19,400      
At the Market Offering $ 45,000 116,000      
Cash and Cash Equivalents, at Carrying Value   22,475 $ 28,268 $ 15,500 $ 12,108
Series E Preferred Stock [Member]          
MANAGEMENT’S LIQUIDITY PLANS (Details) [Line Items]          
Proceeds from Sale of Equity Method Investments   $ 1,300