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Investments (Tables)

3 Months Ended

Mar. 31, 2021

Investments

Schedule of reconciliation of available-for-sale investments from cost basis to fair value


		As of March 31, 2021
					Gross			Gross			Estimated
		Adjusted			Unrealized			Unrealized			Fair
		Cost			Gains			(Losses)			Value
Corporate bonds		$	19,228		$	9		$	(158)		$	19,079
Commercial paper			5,991			—			(3)			5,988
Municipal securities			1,433						(1)			1,432
Asset backed securities			1,931						(2)			1,929
Total investments		$	28,583		$	9		$	(164)		$	28,428

Schedule of available-for-sale securities maturities


Available-for-sale securities maturing as of December 31:
2021 (Remainder of year)			9,153
2022			2,302
2023			4,041
2024			3,338
2025			1,019
Thereafter			8,575
Total			28,428