Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Government institutions	$ 175	$ 167
Prepaid expenses	318	155
Advances to vendors	246	371
Other assets	164
Prepaid expenses and other current assets	$ 903	$ 693