Annual report pursuant to Section 13 and 15(d)

DEBT (Details)

v3.19.3.a.u2
DEBT (Details)
12 Months Ended
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]  
Interest expense $ 335,000
Credit Agreement  
Debt Instrument [Line Items]  
Maximum borrowing capacity 60,000,000
Remaining borrowing capacity 50,000,000
Debt issuance costs being amortized ratably 211,000
Unamortized issuance costs and debt discounts 191,000
Interest expense 237,000
Accrued interest 62,000
Outstanding balance 9,800,000
Covenant, cash $ 10,000,000
Final payment fee, percentage of principal 2.50%
Credit Agreement | Subject to achievement of certain customary conditions  
Debt Instrument [Line Items]  
Remaining borrowing capacity $ 40,000,000
Credit Agreement | LIBOR  
Debt Instrument [Line Items]  
Basis spread on variable rate 5.65%
Floor rate 1.50%
Credit Agreement | as of September 27, 2019  
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 10,000,000
Credit Agreement | until December 31, 2020  
Debt Instrument [Line Items]  
Maximum borrowing capacity 10,000,000
Credit Agreement | until March 31, 2021  
Debt Instrument [Line Items]  
Maximum borrowing capacity 20,000,000
Credit Agreement | until March 31, 2022  
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 20,000,000
Credit Agreement | Initial interest-only payment period  
Debt Instrument [Line Items]  
Interest-only payments period 24 months
Credit Agreement | First conditional interest-only payment period  
Debt Instrument [Line Items]  
Interest-only payments period 36 months
Credit Agreement | Second conditional interest-only payment period  
Debt Instrument [Line Items]  
Interest-only payments period 48 months