Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Debt (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended	9 Months Ended
	Dec. 30, 2019	Oct. 22, 2019	Feb. 28, 2018	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2020	Oct. 23, 2019
Debt
Conversion price							$ 0.40
Convertible notes
Debt
Proceeds from debt issued			$ 500
Shares issued on debt conversion	1,565,300
Conversion price							$ 0.40
Convertible interest rate (as a percentage)						5.00%
Interest on principal				$ 6	$ 19
Debt beneficial conversion feature		$ 401
Amortization of debt discount				$ 10	$ 26