Stockholders' Equity (Deficit) (Details Textual) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands					1 Months Ended		3 Months Ended		12 Months Ended
	Nov. 11, 2019	Aug. 21, 2019	Jul. 12, 2019	Mar. 18, 2016	Apr. 30, 2020	Oct. 28, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2019	Mar. 31, 2020	Oct. 15, 2019
Stockholders' Equity (Deficit) (Textual)
Preferred stock, par value							$ 0.001			$ 0.001
Common stock, par value							$ 0.001			$ 0.001
Common stock, shares authorized							200,000			200,000
Common stock, shares issued							98,604			85,876
Common stock, shares outstanding							98,019			85,291
Treasury shares							585			585
Conversion of stock description						The Company issued 2,243 shares of the Company’s common stock to investors in exchange for the March and May 2017 warrants. Upon the issuance of the 2,243 shares, the March and May 2017 warrants were extinguished. The fair value of the shares issued was $2,186, and the fair value of the warrants was $1,966 resulting in a loss of $220 that was recognized on the exchange.
Gross proceed from private placement							$ 2,000
Loss on exchange of warrants							$ 1,630
Exercise price			$ 0.59
Securities Purchase Agreement [Member]
Stockholders' Equity (Deficit) (Textual)
Number of shares issued		300
Gross proceed from private placement	$ 1,000
Stock sale and issued to investors, description	The Company and two accredited investors entered into a securities purchase agreement (the "Securities Purchase Agreement") pursuant to which the Company sold and issued to the investors an aggregate of 1 share of Series C Convertible Preferred Stock, par value $0.001 per share (the "Series C Preferred Stock"), at a price of $1,000 per share (the "Private Placement").
Investors stock and warrants, description	The Company issued to each investor a warrant (a “Warrant”) to purchase a number of shares of common stock of the Company, par value $0.001 per share (“Common Stock”), equal to the number of shares of Common Stock issuable upon conversion of the Series C Preferred Stock purchased by the Investor. Each Warrant has an exercise price equal to $0.73, subject to full ratchet price only anti-dilution provisions in accordance with the terms of the Warrants (the “Exercise Price”) and is exercisable for five years after the Effective Date. In addition, if the market price of the Common Stock for the five trading days prior to July 22, 2020 is less than $0.73, holder of the warrants shall be entitled to receive additional shares of common stock based on the number of shares of common stock that would have been issuable upon conversion of the Series C Convertible Preferred Stock had the initial conversion price been equal to the market price at such time (but not less than $0.25) less the number of shares of common stock issued or issuable upon exercise of the Series C Convertible Preferred Stock based on the $0.73 conversion price.
Stock conversion price description	Each share of the Series C Preferred Stock has a par value of $0.001 per share and a stated value equal to $1,000 (the “Stated Value”) and is convertible at any time at the option of the holder into the number of shares of Common Stock determined by dividing the stated value by the conversion price of $0.73, subject to certain limitations and adjustments (the “Conversion Price”).
Series B Convertible Preferred Stock [Member]
Stockholders' Equity (Deficit) (Textual)
Number of shares issued		1
Stock consideration received per transaction		$ 2
Stock price per share		$ 0.001
Conversion price							$ 0.51
Conversion of converted common stock											3,761
Ecoark Holdings Preferred Stock [Member]
Stockholders' Equity (Deficit) (Textual)
Shares of blank check preferred stock				5,000
Preferred stock, par value				$ 0.001
Investors stock and warrants, description				The Company issued to each investor a warrant (a “Warrant”) to purchase a number of shares of common stock of the Company, par value $0.001 per share (“Common Stock”), equal to the number of shares of Common Stock issuable upon conversion of the Series B Preferred Stock purchased by the investor. Each Warrant has an exercise price equal to $0.51, subject to full ratchet price only anti-dilution provisions in accordance with the terms of the Warrants (the “Exercise Price”) and is exercisable for five years after the Effective Date. In addition, if the market price of the Common Stock on the 11 month anniversary of the closing date of the offering is less than $0.51, holder of the warrants shall be entitled to receive additional shares of common stock based on the number of shares of common stock that would have been issuable upon conversion of the Series B Convertible Preferred Stock had the initial conversion price been equal to the market price at such time (but not less than $0.25) less the number of shares of common stock issued or issuable upon exercise of the Series B Convertible Preferred Stock based on the $0.51 conversion price.
Stock conversion price description				Each share of the Series B Preferred Stock has a par value of $0.001 per share and a stated value equal to $1,000 (the “Stated Value”) and is convertible at any time at the option of the holder into the number of shares of Common Stock determined by dividing the stated value by the conversion price of $0.51, subject to certain limitations and adjustments (the “Conversion Price”).
Ecoark Holdings Common Stock [Member]
Stockholders' Equity (Deficit) (Textual)
Common stock, par value				$ 0.001						$ 0.001
Common stock, shares authorized				100,000
Number of shares issued									5,500
Stock price per share										$ 0.59
Transaction amount									$ 3,237
Exchange agreement, description			The Company issued 1,540 shares of common stock in April and May 2020 to convert the remaining shares of preferred B and C shares; 7,657 shares of common stock in the exercise of warrants; 443 shares in the exercise of stock options; 466 shares of common stock in the conversion of accounts payable and accrued expenses; and 2,622 shares of common stock in the conversion of long-term debt, notes payable – related parties and accrued interest.
Common Stock [Member]
Stockholders' Equity (Deficit) (Textual)
Common stock for services					1,540