Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Measurements

Schedule of assets that are measured at fair value on a recurring basis

			Fair Value Measurement at Reporting Date Using
in thousands		March 31, 2020	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Assets:
U.S. Treasury Notes	$	8,337	-	$	8,337	-
Corporate Notes / Bonds	$	9,167	-	$	9,167	-
Commercial Paper	$	3,508	-	$	3,508	-
U.S. Treasury Bills	$	2,390	-	$	2,390	-
U.S. Government Agencies	$	2,250	-	$	2,250	-

			Fair Value Measurement at Reporting Date Using
in thousands		December 31, 2019	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Assets:
U.S. Treasury Notes	$	9,225	-	$	9,225	-
Corporate Notes / Bonds	$	8,169	-	$	8,169	-
Commercial Paper	$	3,482	-	$	3,482	-
U.S. Treasury Bills	$	2,385	-	$	2,385	-
U.S. Government Agencies	$	2,249	-	$	2,249	-