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Shareholders' Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended
	Jan. 31, 2020	Dec. 31, 2016	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Warrant exercise price			$ 11.30		$ 11.30
Fair value of warrants			$ (6)	$ 8
Warrant liability			79		$ 73
Stock-based compensation expense			$ 42	13
Chief Executive Officer [Member]
Restricted shares granted during period, shares	48
Chief Executive Officer [Member] | Vest After One Year [Member]
Restricted shares granted during period, shares	24
Chief Executive Officer [Member] | Vest After Two Year [Member]
Restricted shares granted during period, shares	24
Board of Directors [Member]
Restricted shares granted during period, shares	24
Vesting date	Jan. 28, 2021
Original Warrant Agreement [Member] | Maximum [Member]
Warrant exercise price						$ 20.50
Original Warrant Agreement [Member] | Minimum [Member]
Warrant exercise price						$ 11.30
Common Stock [Member]
Number of share issued			(327)
Registered Direct Offering [Member]
Number of share issued		100,000
Net share price		$ 15.00
Proceeds from warrants		$ 1,320
Registered Direct Offering [Member] | Warrant [Member]
Warrants to purchase common stock		100,000
Warrant exercise price		$ 20.05
Fair value of warrants		$ 1,240
Registered Direct Offering [Member] | Common Stock [Member]
Fair value of warrants		$ 80
Stock Options [Member]
Stock-based compensation expense			$ 0	$ 13
Restricted Stock [Member]
Stock-based compensation expense			42
Unrecognized share based compensation			$ 329

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