Cash and Cash Equivalents and Short-Term Investments (Tables)

3 Months Ended

Mar. 31, 2019

Cash and Cash Equivalents and Short-Term Investments

Schedule of short term-investments

			Estimated		Carrying
March 31, 2019	Cost		Fair Value		Value
		(inthousands)
Investments:
Short-term:
Trading securities	$	275	$	225	$	225
Total trading securities		275		225		225
Total short term	$	275	$	225	$	225
December 31, 2018
Investments:
Short-term:
Trading securities	$	275	$	330	$	330
Total trading securities		275		330		330
Total short term	$	275	$	330	$	330