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Notes Payable, Outstanding Notes Payable (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Senior Secured Promissory Notes Payable [Abstract]    
Long-term debt gross $ 27,999 $ 25,574
Long-term debt gross, current (27,192) (24,699)
Long-term debt gross, noncurrent 807 875
Remaining debt discount (7,103) (5,567)
Senior secured promissory note payable, in default 11,894 11,586
Remaining debt discount, current 7,103 5,567
Remaining debt discount, noncurrent 0 0
Remaining embedded conversion option 4,575 6,255
Remaining embedded conversion option, current (4,575) (6,255)
Remaining embedded conversion option, noncurrent 0 0
Convertible promissory note payable, in default 10,532 11,601
Advances on future cash receipts 416 446
Debt, Long-term and Short-term, Combined Amount [Abstract]    
Long-term debt net 25,471 26,262
Long-term debt net, current (24,664) (25,387)
Long-term debt net, noncurrent $ 807 $ 875
Convertible Notes Payable [Member]    
Senior Secured Promissory Notes Payable [Abstract]    
Maturity date In default  
Interest rate 14.00% 14.00%
Conversion price (in dollars per share) $ 0.10 $ 0.10
Principal amount $ 1,596 $ 1,596
Remaining debt discount 0 0
Remaining embedded conversion option 0 0
Convertible promissory notes payable, related parties, in default $ 1,596 $ 1,596
SBA Loan #2 [Member]    
Senior Secured Promissory Notes Payable [Abstract]    
Maturity date Feb. 20, 2026  
Interest rate 1.00% 1.00%
Principal amount $ 1,033 $ 1,033
Remaining debt discount 0 0
Remaining embedded conversion option 0 0
SBA loans $ 1,033 $ 1,033
Advances on Future Cash Receipts [Member]    
Senior Secured Promissory Notes Payable [Abstract]    
Maturity date Jun. 13, 2022 Mar. 11, 2022
Principal amount $ 925 $ 1,500
Remaining debt discount (509) (1,054)
Remaining embedded conversion option 0 0
Advances on future cash receipts $ 416 $ 446
Senior Secured Note [Member]    
Senior Secured Promissory Notes Payable [Abstract]    
Maturity date In default  
Interest rate 20.50% 20.25%
Principal amount $ 18,000 $ 15,000
Remaining debt discount (6,106) (3,414)
Senior secured promissory note payable, in default 11,894 11,586
Remaining embedded conversion option $ 0 $ 0
Convertible Debt [Member]    
Senior Secured Promissory Notes Payable [Abstract]    
Maturity date In default  
Interest rate 15.40% 15.40%
Conversion price (in dollars per share) $ 0.1058 $ 0.1071
Principal amount $ 6,445 $ 6,445
Remaining debt discount (488) (1,099)
Remaining embedded conversion option 4,575 6,255
Convertible promissory note payable, in default $ 10,532 $ 11,601