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Equity Offerings (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jan. 09, 2023	Mar. 31, 2023	Mar. 31, 2024	Dec. 31, 2023
Common stock, weighted average exercise price	$ 3.00
Accrued expenses			$ 1,640	$ 1,733
Incremental fair value of the repriced warrants	$ 300
Aggregate purchase price	8,000
Fair value of Series E warrant	$ 1,900
Weighted average exercise price			$ 5.31
Deemed dividend amount		$ 800
2022 Offering [Member]
Accrued expenses			$ 1,400
Common Stocks | At The Market Offerings.
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 4.00
Stock Issued During Period Shares New Issues	331,608
Net proceeds	$ 1,100
Series A Warrants [Member]
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 3.00
Proceeds From Issuance Of Common Stock	$ 900
Payments Of Stock Issuance Costs	$ 1,000
Percentage of shares exercised beneficially	4.99%
Percentage of shares exercised	9.99%
Par value	$ 0.0001
Series B Warrants [Member]
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 3.00
Proceeds From Issuance Of Common Stock	$ 7,100
Payments Of Stock Issuance Costs	$ 1,000
Stock issued during period, warrants exercised	7,203,000
Series A convertible preferred stock [Member] | Private Placement [Member] | Securities Purchase AgreeMent [Member]
Stock Issued During Period Shares New Issues	497,908
Series A convertible preferred stock [Member] | Private Placement [Member] | Securities Purchase AgreeMent Class B [Member]
Stock Issued During Period Shares New Issues	4,501,060
Series F and Series G Warrants. | Private Placement [Member]
Valuation of warrants	$ 5,500
Warrant Repricing [Member]
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 4.00
Proceeds From Issuance Of Common Stock	$ 1,300
Fee withheld	$ 200
Stock issued during period, warrants exercised	331,608,000
Series E Warrants [Member]
Repriced warrants	$ 1,900
Existing warrants. | Minimum [Member] | Warrant inducement offer.
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 14.00
Existing warrants. | Maximum [Member] | Warrant inducement offer.
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 526.50

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