| The following tables show the Company’s cash equivalents and available-for-sale securities’ amortized cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category |
The
following tables show the Company’s cash equivalents and available-for-sale securities’ amortized cost, gross unrealized
gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- and
long-term investments as of June 30, 2021 and December 31, 2020:
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| June
30, 2021 |
| |
Amortized
Cost |
|
Gross
Unrealized Gains |
|
Gross
Unrealized Losses |
|
Fair
Value |
|
Cash
Equivalents |
|
Short-Term Investments |
|
Long-Term Investments |
| Cash
equivalents: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Money
Market funds |
$ |
11,564,000 |
|
$ |
— |
|
$ |
— |
|
$ |
11,564,000 |
|
$ |
11,564,000 |
|
$ |
— |
|
$ |
— |
| Subtotal |
|
11,564,000 |
|
|
— |
|
|
— |
|
|
11,564,000 |
|
|
11,564,000 |
|
|
— |
|
|
— |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Corporate
Notes/Bonds |
|
6,228,000 |
|
|
2,000 |
|
|
(2,000) |
|
|
6,228,000 |
|
|
— |
|
|
1,705,000 |
|
|
4,523,000 |
| Convertible
Debt |
|
374,000 |
|
|
— |
|
|
— |
|
|
374,000 |
|
|
— |
|
|
— |
|
|
374,000 |
| Subtotal |
|
6,602,000 |
|
|
2,000 |
|
|
(2,000) |
|
|
6,602,000 |
|
|
— |
|
|
1,705,000 |
|
|
4,897,000 |
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|
|
|
|
|
|
|
|
|
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|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Total |
$ |
18,166,000 |
|
$ |
2,000 |
|
$ |
(2,000) |
|
$ |
18,166,000 |
|
$ |
11,564,000 |
|
$ |
1,705,000 |
|
$ |
4,897,000 |
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|
|
| December
31, 2020 |
| |
Amortized
Cost |
|
Gross
Unrealized Gains |
|
Gross
Unrealized Losses |
|
Fair
Value |
|
Cash
Equivalents |
|
Short-Term Investments |
|
Long-Term Investments |
| Cash
equivalents: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Money
Market funds |
$ |
9,424,000 |
|
$ |
— |
|
$ |
— |
|
$ |
9,424,000 |
|
$ |
9,424,000 |
|
$ |
— |
|
$ |
— |
| Subtotal |
|
9,424,000 |
|
|
— |
|
|
— |
|
|
9,424,000 |
|
|
9,424,000 |
|
|
— |
|
|
— |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Commercial
Paper |
|
700,000 |
|
|
— |
|
|
— |
|
|
700,000 |
|
|
— |
|
|
700,000 |
|
|
— |
| Corporate
Notes/Bonds |
|
7,658,000 |
|
|
7,000 |
|
|
(1,000) |
|
|
7,664,000 |
|
|
— |
|
|
2,059,000 |
|
|
5,605,000 |
| Convertible
Debt |
|
605,000 |
|
|
— |
|
|
— |
|
|
605,000 |
|
|
— |
|
|
— |
|
|
605,000 |
| Subtotal |
|
8,963,000 |
|
|
7,000 |
|
|
(1,000) |
|
|
8,969,000 |
|
|
— |
|
|
2,759,000 |
|
|
6,210,000 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Total |
$ |
18,387,000 |
|
$ |
7,000 |
|
$ |
(1,000) |
|
$ |
18,393,000 |
|
$ |
9,424,000 |
|
$ |
2,759,000 |
|
$ |
6,210,000 |
|
The following
tables show the Company’s cash equivalents and available-for-sale securities’ amortized cost, gross unrealized gains, gross
unrealized losses and fair value by significant investment category recorded as cash equivalents or short and long-term investments as
of December 31, 2020 and December 31, 2019:
December
31, 2020
| |
|
Amortized
Cost |
|
|
Gross
Unrealized Gains |
|
|
Gross
Unrealized Losses |
|
|
Fair
Value |
|
|
Cash
Equivalents |
|
|
Short-Term
Investments |
|
|
Long-Term
Investments |
|
| |
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
|
| Cash equivalents: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Money
Market funds |
|
$ |
9,424,000 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
9,424,000 |
|
|
$ |
9,424,000 |
|
|
$ |
— |
|
|
$ |
— |
|
| Subtotal |
|
|
9,424,000 |
|
|
|
— |
|
|
|
— |
|
|
|
9,424,000 |
|
|
|
9,424,000 |
|
|
|
— |
|
|
|
— |
|
| |
|
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|
|
|
|
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|
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|
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| Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Commercial
Paper |
|
|
700,000 |
|
|
|
— |
|
|
|
— |
|
|
|
700,000 |
|
|
|
— |
|
|
|
700,000 |
|
|
|
— |
|
| Corporate
Notes/Bonds |
|
|
7,658,000 |
|
|
|
7,000 |
|
|
|
(1,000 |
) |
|
|
7,664,000 |
|
|
|
— |
|
|
|
2,059,000 |
|
|
|
5,605,000 |
|
| Convertible
Debt |
|
|
605,000 |
|
|
|
— |
|
|
|
— |
|
|
|
605,000 |
|
|
|
— |
|
|
|
— |
|
|
|
605,000 |
|
| Subtotal |
|
|
8,963,000 |
|
|
|
7,000 |
|
|
|
(1,000 |
) |
|
|
8,969,000 |
|
|
|
— |
|
|
|
2,759,000 |
|
|
|
6,210,000 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Total |
|
$ |
18,387,000 |
|
|
$ |
7,000 |
|
|
$ |
(1,000 |
) |
|
$ |
18,393,000 |
|
|
$ |
9,424,000 |
|
|
$ |
2,759,000 |
|
|
$ |
6,210,000 |
|
| December
31, 2019 |
| |
| |
|
Amortized
Cost |
|
|
Gross
Unrealized Gains |
|
|
Gross
Unrealized Losses |
|
|
Fair
Value |
|
|
Cash
Equivalents |
|
|
Short-Term
Investments |
|
|
Long-Term
Investments |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Cash equivalents: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Money
Market funds |
|
$ |
8,761,000 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
8,761,000 |
|
|
$ |
8,761,000 |
|
|
$ |
— |
|
|
$ |
— |
|
| Subtotal |
|
|
8,761,000 |
|
|
|
— |
|
|
|
— |
|
|
|
8,761,000 |
|
|
|
8,761,000 |
|
|
|
— |
|
|
|
— |
|
| |
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
| Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Commercial
Paper |
|
|
8,695,000 |
|
|
|
— |
|
|
|
(1,000 |
) |
|
|
8,694,000 |
|
|
|
— |
|
|
|
8,694,000 |
|
|
|
— |
|
| Corporate
Notes/Bonds |
|
|
756,000 |
|
|
|
— |
|
|
|
— |
|
|
|
756,000 |
|
|
|
— |
|
|
|
756,000 |
|
|
|
— |
|
| Convertible
Debt |
|
|
250,000 |
|
|
|
— |
|
|
|
— |
|
|
|
250,000 |
|
|
|
— |
|
|
|
— |
|
|
|
250,000 |
|
| Subtotal |
|
|
9,701,000 |
|
|
|
— |
|
|
|
(1,000 |
) |
|
|
9,700,000 |
|
|
|
— |
|
|
|
9,450,000 |
|
|
|
250,000 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Total |
|
$ |
18,462,000 |
|
|
$ |
— |
|
|
$ |
(1,000 |
) |
|
$ |
18,461,000 |
|
|
$ |
8,761,000 |
|
|
$ |
9,450,000 |
|
|
$ |
250,000 |
|
|