Description of the Business and Summary of Significant Accounting Policies (Reconciliation of the Level 3 Warrant Liability Measured and Recorded at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Description of the Business and Summary of Significant Accounting Policies [Abstract]
Balance as of January 1, 2020			$ 23
Fair value of warrants issuance during period
Change in fair value of warrant liability, net	$ 1,481	$ (536)	1,501	$ (1,330)
Balance as of June 30, 2020	$ 1,524		$ 1,524