Quarterly report pursuant to Section 13 or 15(d)

LEASES Narrative (Details)

v3.20.1
LEASES Narrative (Details)
3 Months Ended
Jan. 01, 2019
Mar. 31, 2020
USD ($)
Lease
Mar. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Lessee, Lease, Description [Line Items]        
Number of operating leases | Lease   2    
Restricted cash   $ 150,000 $ 211,000 $ 150,000
Weighted average incremental borrowing rate 4.75%      
Operating lease, cost   283,000 264,000  
Cash paid for operating lease liabilities   180,000 134,000  
Research and development expenses        
Lessee, Lease, Description [Line Items]        
Operating lease, cost   209,000 197,000  
Sales, marketing and administration expenses        
Lessee, Lease, Description [Line Items]        
Operating lease, cost   74,000 $ 67,000  
Corporate Headquarters        
Lessee, Lease, Description [Line Items]        
Deposits   50,000    
Restricted cash   150,000    
Letter of Credit        
Lessee, Lease, Description [Line Items]        
Letter of credit annual step down   50,000    
Letter of Credit | Corporate Headquarters        
Lessee, Lease, Description [Line Items]        
Operating lease deposit, letter of credit   150,000    
Letter of credit annual step down of no default payment   $ 200,000    
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