Company Description and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Company Description and Summary of Significant Accounting Policies [Abstract]

Fair Value of Financial Instruments Measured on a Recurring Basis

The fair value of financial instruments measured on a recurring basis is as follows (in thousands):

	As of December 31, 2023
Description	Total		Level 1		Level 2		Level 3
Assets:
Short-term investments	$	15	$	15	$	—	$	—
Total assets at fair value	$	15	$	15	$	—	$	—
Liabilities:
Derivative liability	$	74	$	—	$	—	$	74
Total liabilities at fair value	$	74	$	—	$	—	$	74

	As of December 31, 2022
Description	Total		Level 1			Level 2			Level 3
Assets:
Short-term investments	$	49		$	49		$	—		$	—
Total assets at fair value	$	49		$	49		$	—		$	—

Fair Value, Investments and Derivative Liabilities Measured on a Recurring Basis

The following table provides a roll-forward of short-term investments and derivative liabilities measured at fair value on a recurring basis using observable Level 1 and Level 3 inputs, as applicable, for the years ended December 31, 2023 and 2022 (in thousands):

	2023			2022
Short-term investments
Balance as of beginning of period	$	49		$	219
Unrealized loss		(34	)		(170	)
Balance as of end of period	$	15		$	49

	2023			2022
Derivative liabilities
Balance as of beginning of period	$	—		$	—
Purchase agreement execution		154			—
Unrealized gain		(80	)		—
Balance as of end of period	$	74		$	—