Marketable Securities (Tables)

3 Months Ended

Jun. 30, 2018

Marketable Securities [Abstract]

Schedule Of Available For Sale Securities Reconciliation

The following is a summary of available-for-sale securities at March 31, 2018 (in thousands, prior to the adoption of ASU 2016-01):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Marketable securities	$	7,149	$	588	$	64	$	7,673