Liability for Employees Right Upon Retirement (Details Narrative) (10-K) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Percentage of monthly deposits on salary	8.33%
Severance expenses	$ 197	$ 186
Defined contribution plan expense	294	$ 244
2020 [Member]
Defined contribution plan expense estimated	$ 297

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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