Leases (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) ft² Tenant	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Leased Assets [Abstract]
Operating lease - right of use assets		$ 1,726		$ 1,726		$ 2,215
Lease Liabilities [Abstract]
Operating lease liabilities - current		1,141		1,141		1,153
Operating lease liabilities - Noncurrent		2,100		2,100		3,000
Operating lease liability		3,241		$ 3,241		4,153
Sublease Agreement [Abstract]
Sublease square feet | ft²				3,650
Sublease date				May 01, 2019
Previously subleased square feet | ft²				3,822
Previous sublease date				Apr. 01, 2017
Number of tenants | Tenant				2
Consolidated Statement of Operations Information [Abstract]
Operating lease cost	[1]	207	$ 307	$ 625	$ 852
Short-term leases costs	[2]	0	46	1	119
Sublease income	[3]	(33)	(43)	(97)	(75)
Net lease cost		174	$ 310	529	896
Minimum Lease Payments [Abstract]
2020		319		319
2021		1,255		1,255
2022		1,166		1,166
2023		631		631
2024		116		116
and thereafter		0		0
Total lease payments		3,487		3,487
Less: Interest		246		246
Present value of lease payments		$ 3,241		$ 3,241		$ 4,153
Lease Term and Discount Rate [Abstract]
Weighted-average remaining lease term (in years)				2 years 9 months 29 days		3 years 6 months 4 days
Weighted-average discount rate		5.00%		5.00%		5.00%
Other Information [Abstract]
Operating cash flows used in operating leases				$ 1,015	893
Right-of-use assets obtained in exchange for new operating liabilities				$ 0	$ 1,777
Minimum [Member]
Lessee, Operating Lease, Description [Abstract]
Remaining operating lease terms		1 year		1 year
Renewal option period		1 year		1 year
Maximum [Member]
Lessee, Operating Lease, Description [Abstract]
Remaining operating lease terms		3 years		3 years
Renewal option period		5 years		5 years

[1] Includes variable lease costs which are immaterial.

[2] Include leases maturing less than twelve months from the report date.

[3] Sublease portfolio consists of two tenants, which sublease parts of our principal executive office located at 1332 Londontown Blvd, Suite 200, Sykesville, MD.