Warrant Derivative Liabilities (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Aug. 22, 2019	Mar. 31, 2019
Fair value of 1,000 March 17, 2017 warrants			$ 256
Fair value of 1,850 May 22, 2017 warrants			505
Fair value of 2,565 March 16, 2018 warrants			1,040
Fair value of 2,969 August 14, 2018 warrants			1,303
Fair value of 3,922 August 22, 2019 warrants	2,812	$ 1,576
Fair value of 1,379 November 11, 2019 warrants	947
Total	3,759		$ 3,104
Inception [Member]
Fair value of 1,000 March 17, 2017 warrants	4,609
Fair value of 1,850 May 22, 2017 warrants	7,772
Fair value of 2,565 March 16, 2018 warrants	3,023
Fair value of 2,969 August 14, 2018 warrants	2,892
Fair value of 3,922 August 22, 2019 warrants	1,576
Fair value of 1,379 November 11, 2019 warrants	$ 1,107

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant