Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Schedule that reconciles the undiscounted lease liabilities to the total lease liabilities recognized on the unaudited consolidated balance sheet

The following table reconciles the undiscounted lease liabilities to the total lease liabilities recognized on the consolidated balance sheet as of December 31, 2019 (in thousands):

	As of
	December 31,
2020		32
2021		32
2022		32
2023		32
2024		16
Total lease payments	$	144
Less effect of discounting		(28)
Total	$	116
Short-term portion		(22)
Long-term portion	$	94

Schedule of ASC 840 future minimum lease payments

Under ASC 840 disclosure requirements, prior to the adoption of ASC 842, the future minimum lease payments at December 31, 2018 were as follows (in thousands):

	December 31,
2019	$	57
Total minimum payments	$	57

Schedule of future minimum payments of other commitments

As of December 31, 2019, future minimum payments under the agreement, which is cancellable annually at the end of each research year, are as follows (in thousands):

	December 31,
2020	$	220
2021		220
2022		220
		660

Head Quarters in Boston Lease [Member]

Schedule that reconciles the undiscounted lease liabilities to the total lease liabilities recognized on the unaudited consolidated balance sheet

Future minimum lease payments at December 31, 2019 were as follows under the New Boston Lease (in thousands):

	December 31,
2020	$	204
2021		21
Total minimum payments	$	225