Impact of ASC 842 Adoption (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)
Lessee Lease Description [Line Items]
Weighted average remaining lease term	3 years 7 months 6 days	3 years 7 months 6 days
Weighted average discount rate	4.20%	4.20%
ROU assets	$ 1.2	$ 1.2
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherNoncurrentAssetsMember	us-gaap:OtherNoncurrentAssetsMember
Lease obligations current	$ 0.6	$ 0.6
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherCurrentLiabilitiesMember	us-gaap:OtherCurrentLiabilitiesMember
Lease obligations non-current	$ 1.0	$ 1.0
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherNoncurrentLiabilitiesMember	us-gaap:OtherNoncurrentLiabilitiesMember
Total operating lease costs	$ 0.1	$ 0.4
Maximum [Member]
Lessee Lease Description [Line Items]
Percentage of right of use assets to total assets	1.00%	1.00%
Percentage of lease liabilities to total liabilities	5.00%	5.00%