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Summary of Liquidated Damages (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Registration Rights Damages $ 2,002 $ 4,305
Public Information Failure Damages 2,740 5,713
Accrued interest 1,595 2,187
Liquidated damages payable, current 6,337 12,205
MDB Common Stock To Be Issued [Member]    
Registration Rights Damages 15 [1] 15 [2]
Public Information Failure Damages [2]
Accrued interest [1] [2]
Liquidated damages payable, current 15 [1] 15 [2]
Series H Preferred Stock [Member]    
Registration Rights Damages 618 1,164
Public Information Failure Damages 626 1,172
Accrued interest 570 792
Liquidated damages payable, current 1,814 3,128
Convertible Debentures [Member]    
Registration Rights Damages
Public Information Failure Damages 704 873
Accrued interest 280 242
Liquidated damages payable, current 984 1,115
Series J Convertible Preferred Stock [Member]    
Registration Rights Damages 932 1,560
Public Information Failure Damages 932 1,560
Accrued interest 525 490
Liquidated damages payable, current 2,389 3,610
Series K Convertible Preferred Stock [Member]    
Registration Rights Damages 437 180
Public Information Failure Damages 478 722
Accrued interest 220 50
Liquidated damages payable, current $ 1,135 952
Series I Preferred Stock [Member]    
Registration Rights Damages   1,386
Public Information Failure Damages   1,386
Accrued interest   613
Liquidated damages payable, current   $ 3,385
[1] Shares of common stock issuable to MDB Capital Group, LLC (“MDB”).
[2] Shares of common stock issuable to MDB.