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Summary of Liquidated Damages (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Registration Rights Damages $ 1,660 $ 4,305
Public Information Failure Damage 2,640 5,713
Accrued Interest 1,197 2,187
Balance 5,497 12,205
MDB Common Stock To Be Issued [Member]    
Registration Rights Damages [1] 15 15
Public Information Failure Damage [1]
Accrued Interest [1]
Balance [1] 15 15
Series H Preferred Stock [Member]    
Registration Rights Damages 618 1,164
Public Information Failure Damage 625 1,172
Accrued Interest 494 792
Balance 1,737 3,128
Convertible Debentures [Member]    
Registration Rights Damages
Public Information Failure Damage 704 873
Accrued Interest 237 242
Balance 941 1,115
Series J Convertible Preferred Stock [Member]    
Registration Rights Damages 932 1,560
Public Information Failure Damage 932 1,560
Accrued Interest 412 490
Balance 2,276 3,610
Series K Convertible Preferred Stock [Member]    
Registration Rights Damages 95 180
Public Information Failure Damage 379 722
Accrued Interest 54 50
Balance $ 528 952
Series I Convertible Preferred Stock [Member]    
Registration Rights Damages   1,386
Public Information Failure Damage   1,386
Accrued Interest   613
Balance   $ 3,385
[1] Consists of shares of common stock issuable to MDB Capital Group, LLC (“MDB”).