Short-Term Investments

3 Months Ended

Mar. 31, 2019

Investments Debt And Equity Securities [Abstract]

Short-Term Investments

5. SHORT-TERM INVESTMENTS

The following is a summary of the Company’s short-term investments (in thousands):

	March 31, 2019									December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Loss			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Loss			Fair Value
Corporate bonds and commercial paper	$	22,437	$	1	$	(1	)	$	22,437	$	37,168	$	—	$	(17	)	$	37,151
U.S. government securities		4,963		1		—			4,964		4,995		—		—			4,995
Total Short-Term Investments	$	27,400	$	2	$	(1	)	$	27,401	$	42,163	$	—	$	(17	)	$	42,146

Tax amounts related to unrealized losses are not material for all periods presented.

The following table summarizes the maturities of the Company’s short-term investments by contractual maturity (in thousands):

	March 31, 2019				December 31, 2018
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Less than 1 year	$	27,400	$	27,401	$	42,163	$	42,146
Due in 1-3 years		—		—		—		—
Total Short-Term Investments	$	27,400	$	27,401	$	42,163	$	42,146