Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Lease Narrative (Details)

v3.20.2
Commitments and Contingencies Lease Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Lessee, Lease, Description [Line Items]      
Gain (Loss) on Termination of Lease   $ 0 $ 21,000
Sublease Income $ 35,000 $ 0 73,000
Lessee, Finance Lease, Term of Contract   3 years  
Lessee, Operating Lease, Term of Contract   4 years  
Lessee, Operating Lease, Number Of Offices   2  
Lessee, Operating Lease, Renewal Term   5 years  
Minneapolis Headquarters [Member]      
Lessee, Lease, Description [Line Items]      
Gain (Loss) on Termination of Lease     $ 21,000