Investments (Tables)

6 Months Ended

Jun. 30, 2020

Investments

Schedule of cash and cash equivalents andshort and long-term investments

	June 30, 2020			December 31, 2019
Cash and cash equivalents:
Cash deposits	$	21,488		$	38,942
Money market funds		1,861			3,460
Commercial paper		750			2,646
Total cash and cash equivalents	$	24,099		$	45,048
Short-term investments:
Commercial paper (held-to-maturity)	$	4,709		$	6,778
Bonds (held-to-maturity)		1,880			16,988
Allowance for credit losses		(16	)		-
Total short-term investments	$	6,573		$	23,766
Long-term investments:
Mutual funds (available for sale)	$	462		$	1,105
Bonds (held-to-maturity)		54,353			27,845
Allowance for credit losses		(66	)		-
Equity securities (available for sale)		2,123			2,822
Total long-term investments	$	56,872		$	31,772
Total cash, cash equivalents and short and long-term investments	$	87,544		$	100,586

Schedule of investments, held-to-maturity securities

Held-to-Maturity Bonds
Credit Quality Indicators	Asset Backed Bonds		Fed Govt Bonds/Notes		Municipal Bonds		Corporate Bonds		Totals
AAA/AA/A	$	2,392	$	3,335	$	755	$	34,771	$	41,253
BBB/BB		-		-		-		14,980		14,980
TOTAL	$	2,392	$	3,335	$	755	$	49,751	$	56,233

Schedule of allowance for credit losses on short-term and long-term investments

	Short- Term Securities		Long- Term Securities		Total
Beginning balance, December 31, 2019	$	-	$	-	$	-
Allowance recognized upon adoption of Topic 326		9		33		42
Provision for credit loss expense		7		33		40
Ending balance, June 30, 2020	$	16	$	66	$	82

Schedule of gross unrealized gains and losses on investments

					Gross Unrealized
	Level		Cost		Gains		Losses			Fair Value
As of June 30, 2020:
Money market		1		1,861	$	--	$	--		$	1,861
Commercial paper		2		5,459	$	14	$	--		$	5,473
Bonds		2		56,233	$	575	$	(45	)	$	56,763
Mutual funds		1		561	$	--	$	(99	)	$	462
Equity investments		2		5,675	$	--	$	(3,552	)	$	2,123
As of December 31, 2019:
Money Market		1		3,460	$	--	$	--		$	3,460
Commercial paper		2		9,424	$	2	$	--		$	9,426
Bonds		2		44,833	$	138	$	(19	)	$	44,952
Mutual funds		1		1,052	$	53	$	--		$	1,105
Equity investments		2		5,675	$	--	$	(2,853	)	$	2,822