Equity Offerings (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		3 Months Ended	6 Months Ended
	Jan. 09, 2023	Feb. 08, 2022	Jul. 31, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2023
Common stock, weighted average exercise price	$ 3.00
Series F warrants exercisable	4,999,093
Series G warrants exercisable	4,999,093
Repriced warrants						$ 300
Fair value of Series E warrant						$ 1,900
Common stock reserve for issuance					11,042,151	11,042,151
Weighted average exercise price						$ 5.31
Deemed dividend amount					$ 0	$ 800
Minimum [Member] | Existing warrants. | Warrant inducement offer.
Warrants issued price per share	$ 14.00
Maximum [Member] | Existing warrants. | Warrant inducement offer.
Warrants issued price per share	$ 526.50
Warrant Repricing [Member]
Expected term (In Years)						4 years 7 months 6 days
Risk-free interest rate						2.87%
Expected Volatility						98.90%
Valuation of warrants						$ 400
Fee withheld	$ 200
Stock issued during period, warrants exercised	331,608
Warrants issued price per share	$ 4.00
Proceeds from issuance of common stock	$ 1,300
Offering [Member]
Common stock issued (in shares)		190,700
Expected term (In Years)						5 years
Expected dividend yield						0.00%
Risk-free interest rate						1.81%
Expected Volatility						93.25%
Valuation of warrants						$ 400
Fee withheld						1,100
Stock issued during period, warrants exercised			800	1,000
Offering expenses paid or payable						1,800
Proceeds from issuance of common stock						11,500
Offering [Member] | Accrued Expenses [Member]
Cash fee for placement agent					$ 900	$ 900
Overallotment Option [Member]
Overallotment option period		45 days
Common stock issued (in shares)		24,902
Overallotment Option [Member] | Maximum [Member]
Common stock issued (in shares)		72,000
Series A Warrants [Member]
Number of warrants to issue for purchase of common stock	8,000
Percentage of shares exercised	9.99%
Stock issued during period, warrants exercised	497,908
Par value	$ 0.0001
Warrants issued price per share	$ 3.00
Offering expenses paid or payable	$ 100,000
Proceeds from issuance of common stock	$ 90
Series A Warrants [Member] | Offering [Member]
Common stock issued (in shares)		480,052
Equity offering description		warrants to purchase one share of common stock
Stock issued during period, warrants exercised			800
Warrants issued price per share		$ 25.00
Series A Warrants [Member] | Overallotment Option [Member]
Common stock issued (in shares)		72,000
Series A Warrants [Member] | Overallotment Option [Member] | Maximum [Member]
Common stock issued (in shares)		72,000
Series B Warrants [Member]
Stock issued during period, warrants exercised	7,203
Warrants issued price per share	$ 3.00
Offering expenses paid or payable	$ 100,000
Proceeds from issuance of common stock	7,100
Series B Warrants [Member] | Offering [Member]
Common stock issued (in shares)		480,052
Equity offering description		warrants to purchase one share of common stock
Warrants issued price per share		$ 25.00
Series B Warrants [Member] | Overallotment Option [Member]
Common stock issued (in shares)		72,000
Series B Warrants [Member] | Overallotment Option [Member] | Maximum [Member]
Common stock issued (in shares)		72,000
Pre-funded Warrants. | Offering [Member]
Common stock issued (in shares)		289,352
Equity offering description		warrants to purchase one share of common stock
Stock issued during period, warrants exercised				289,352
Warrants issued price per share		$ 0.005
Series A and Series B Warrants. | Offering [Member]
Valuation of warrants		$ 11,600
Series F and Series G Warrants. | Private Placement [Member]
Valuation of warrants	$ 5,500
Series A warrants and Series B warrants. | Offering [Member]
Stock issued during period, warrants exercised				500
Common Stocks | At The Market Offerings.
Common stock issued (in shares)	331,608
Warrants issued price per share	$ 4.00
Net proceeds	$ 1,100
Securities Purchase AgreeMent [Member] | Series A convertible preferred stock [Member] | Private Placement [Member]
Common stock issued (in shares)	497,908
Securities Purchase AgreeMent Class B [Member] | Series A convertible preferred stock [Member] | Private Placement [Member]
Common stock issued (in shares)	4,501,060