Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value of Financial Instruments [Abstract]

Assets and Liabilities Measured at Fair Value

The following table presents assets measured at fair value at June 30, 2021:

(in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Money market funds	$	15	$	-	$	-	$	15
Total assets		15		-		-		15

The following table presents assets and liabilities measured at fair value at December 31, 2020:

(in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Money market funds	$	435	$	-	$	-	$	435
Total assets	$	435	$	-	$	-	$	435