Schedule of Senior Convertible Note Estimated Fair Value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020
Short-term Debt [Line Items]
Fair Value - December 31, 2019	$ 14,660		$ 8,139
Installment repayments – common stock	(956)		(14,736)
Non-installment payments – common stock	(7)		(470)
Non-installment payments – cash	(154)		(600)
Change in fair value	(1,682)		2,027
Principal repayments - cash	(11,861)
Fair Value at December 31, 2020		[1]	14,660
Face value principal – issue date			18,861
Fair value adjustment – issue date			1,439
November 2019 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
April 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
August 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
Other Income Expense [Member]
Short-term Debt [Line Items]
Other Income (Expense) - Change in fair value	1,682		(5,327)
November 2019 Senior Secured Convertible Notes [Member]
Short-term Debt [Line Items]
Fair Value - December 31, 2019	1,270		6,439
Installment repayments – common stock	(956)		(13,044)
Non-installment payments – common stock	(7)		(464)
Non-installment payments – cash			(138)
Change in fair value	(307)		(1,123)
Principal repayments - cash
Fair Value at December 31, 2020		[1]	1,270
Face value principal – issue date			7,000
Fair value adjustment – issue date			2,600
November 2019 Senior Secured Convertible Notes [Member] | November 2019 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
November 2019 Senior Secured Convertible Notes [Member] | April 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
November 2019 Senior Secured Convertible Notes [Member] | August 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
April 2020 Senior Convertible Notes [Member]
Short-term Debt [Line Items]
Fair Value - December 31, 2019	4,600
Installment repayments – common stock
Non-installment payments – common stock
Non-installment payments – cash	(52)		(216)
Change in fair value	(437)		1,116
Principal repayments - cash	(4,111)
Fair Value at December 31, 2020		[1]	4,600
Face value principal – issue date			4,111
Fair value adjustment – issue date			(411)
April 2020 Senior Convertible Notes [Member] | November 2019 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
April 2020 Senior Convertible Notes [Member] | April 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
April 2020 Senior Convertible Notes [Member] | August 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
August 2020 Senior Secured Convertible Note [Member]
Short-term Debt [Line Items]
Fair Value - December 31, 2019	8,790
Installment repayments – common stock
Non-installment payments – common stock
Non-installment payments – cash	(102)		(246)
Change in fair value	(938)		2,036
Principal repayments - cash	(7,750)
Fair Value at December 31, 2020		[1]	8,790
Face value principal – issue date			7,750
Fair value adjustment – issue date			(750)
August 2020 Senior Secured Convertible Note [Member] | November 2019 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
August 2020 Senior Secured Convertible Note [Member] | April 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
August 2020 Senior Secured Convertible Note [Member] | August 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
Other Income Expense [Member]
Short-term Debt [Line Items]
Fair Value - December 31, 2019
Installment repayments – common stock
Non-installment payments – common stock
Non-installment payments – cash
Change in fair value	1,682		(2,027)
Principal repayments - cash
Fair Value at December 31, 2020		[1]
Face value principal – issue date
Fair value adjustment – issue date			(1,439)
Other Income Expense [Member] | November 2019 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note			(700)
Other Income Expense [Member] | April 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note			(411)
Other Income Expense [Member] | August 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note			(750)
December 2018 Senior Convertible Note [Member]
Short-term Debt [Line Items]
Fair Value - December 31, 2019			1,700
Installment repayments – common stock			(1,692)
Non-installment payments – common stock			(6)
Non-installment payments – cash
Change in fair value			(2)
Fair Value at December 31, 2020
Face value principal – issue date
Fair value adjustment – issue date
December 2018 Senior Convertible Note [Member] | November 2019 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
December 2018 Senior Convertible Note [Member] | April 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note
December 2018 Senior Convertible Note [Member] | August 2020 [Member]
Short-term Debt [Line Items]
August 2020 Senior Secured Convertible Note

[1] As discussed above, all remaining convertible notes were previously repaid during the three months ended March 31, 2021.