Notes Payable (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands											1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 05, 2021	Aug. 05, 2021	Jul. 05, 2021	Jun. 15, 2021	Apr. 02, 2021	Mar. 05, 2021	Dec. 08, 2020	Apr. 16, 2020	Apr. 12, 2019	Jun. 01, 2018	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jul. 27, 2021
Short-term Debt [Line Items]
Unsecured promissory notes				$ 120													$ 110
Percentage of common stock									9.99%
Accretion of debt discount												$ 256	$ 0	$ 526	$ 877
Derivative liability				$ 172
Stock Issued During Period, Shares, Conversion of Convertible Securities				4,761,905
Settlement Debt				$ 30
Accrued interest																	11
Current liabilities											$ 2,281	2,281		2,281		$ 1,777
Convertible Promissory Note [Member]
Short-term Debt [Line Items]
Debt discount						$ 1,000
Amortization of debt discount						210
Accretion of debt discount						1,210
March 2021 [Member]
Short-term Debt [Line Items]
Unsecured promissory notes											$ 270	270		270
Debt Instrument, Interest Rate, Increase (Decrease)	5.00%	5.00%	5.00%								5.00%
March Twenty Twenty One Note One [Member]
Short-term Debt [Line Items]
Unsecured promissory notes											$ 1,480	1,480		1,480
PPP Loan [Member]
Short-term Debt [Line Items]
Debt forgiveness amount					$ 108			$ 108
PPP Loan [Member] | Aquesta Bank [Member]
Short-term Debt [Line Items]
Maturity date of notes								Apr. 01, 2023
Debt instrument accrued interest rate								1.00%
Debt monthly payments								$ 6
Current liabilities																3
Non-current liabilities																111
Securities Purchase Agreement [Member] | Convertible Promissory Note [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						$ 13,210
Debt instrument accrued interest rate						8.00%
Debt conversion price, percentage						70.00%
Debt instrument, conversion price per shares						$ 0.04
Debt instrument, term						12 months
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | Initial Tranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						$ 1,210
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | One Tranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						1,200
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | Two Tranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						1,200
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | Three Tranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						1,200
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | Four Tranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						1,200
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | FiveTranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						1,200
Security Purchase Agreement Mmeber [Member] | Convertible Promissory Note [Member] | Six Tranche [Member]
Short-term Debt [Line Items]
Unsecured promissory notes						$ 6,000
Exchange Agreement [Member] | March 2021 [Member]
Short-term Debt [Line Items]
Unsecured promissory notes											1,481	1,481		1,481
Debt discount											758	758		758
Settlement Debt											438	438		438
Accrued interest											$ 60	$ 60		$ 60
Warrant, shares											53,500,000	53,500,000		53,500,000
Warrant liability											$ 1,221	$ 1,221		$ 1,221
Shares Issued Upon Conversion [Member]
Short-term Debt [Line Items]
Unsecured promissory notes																$ 0
Debt conversion, shares issued																93,078,492
Debt conversion, amount																$ 929
June 2018 Notes [Member]
Short-term Debt [Line Items]
Unsecured promissory notes										$ 3,600
Notes payable										$ 3,000
Maturity date of notes										Apr. 01, 2019
Percentage of common stock										120.00%
December 2020 Note [Member]
Short-term Debt [Line Items]
Debt discount							$ 200
Amortization of debt discount							30
Accretion of debt discount							230
Derivative liability							555										153
Beneficial conversion feature							355
Interest expense, debt							355
Settlement Debt																	$ 72
December 2020 Note [Member] | Securities Purchase Agreement [Member]
Short-term Debt [Line Items]
Notes payable							$ 230
Percentage of common stock							70.00%
Debt discount							$ 200
Debt instrument accrued interest rate							8.00%