Annual report pursuant to Section 13 and 15(d)

LEASES Narrative (Details)

v3.20.1
LEASES Narrative (Details)
$ in Thousands
12 Months Ended
Jan. 01, 2019
Dec. 31, 2019
USD ($)
Lease
Dec. 31, 2018
USD ($)
Lessee, Lease, Description [Line Items]      
Number of operating lease | Lease   2  
Restricted cash balance   $ 50 $ 50
Weighted average incremental borrowing rate 4.75%    
Operating lease cost   1,066 663
Operating lease, payments   492  
Letter of Credit      
Lessee, Lease, Description [Line Items]      
Deposits     50
Office Building      
Lessee, Lease, Description [Line Items]      
Deposits   50  
Restricted cash balance     150
Office Building | Letter of Credit      
Lessee, Lease, Description [Line Items]      
Operating lease deposit, letter of credit   150  
Line of credit facility, annual step down of no defaults     200
Research and Development Expense      
Lessee, Lease, Description [Line Items]      
Operating lease cost   803 158
Selling, General and Administrative Expenses      
Lessee, Lease, Description [Line Items]      
Operating lease cost   $ 263 $ 505
Minimum | Facilities      
Lessee, Lease, Description [Line Items]      
Operating lease renewal periods   2 years  
Maximum | Facilities      
Lessee, Lease, Description [Line Items]      
Operating lease renewal periods   5 years  
Maximum | Facilities and Equipment      
Lessee, Lease, Description [Line Items]      
Operating lease term   12 months