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AVAILABLE-FOR-SALE MARKETABLE SECURITIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract] |
Summary of Available-for-Sale Marketable Securities | The following is a summary of available-for-sale marketable securities:
|  | December 31, 2020 |  | December 31, 2019 |
|  |  | Amortized cost |  |  | Gross unrealized gain |  | Gross unrealized loss |  |  | Fair value |  |  |  | Amortized cost |  |  | Gross unrealized gain |  |  | Gross unrealized loss |  |  | Fair value |
Available-for-sale - matures within one year: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Governmental debentures |  |  | $ | - |  |  | $ | - |  | $ | - |  |  | $ | - |  |  |  | $ | 449 |  |  | $ | 1 |  |  | $ | - |  |  | $ | 450 |
Corporate debentures |  |  |  | 12,611 |  |  |  | 97 |  |  | - |  |  |  | 12,708 |  |  |  |  | 30,928 |  |  |  | 79 |  |  |  | (8 | ) |  |  | 30,999 |
|  |  |  | 12,611 |  |  |  | 97 |  |  | - |  |  |  | 12,708 |  |  |  |  | 31,377 |  |  |  | 80 |  |  |  | (8 | ) |  |  | 31,449 |
Available-for-sale - matures after one year through three years: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Governmental debentures |  |  |  | 379 |  |  |  | 3 |  |  | - |  |  |  | 382 |  |  |  |  | 855 |  |  |  | 1 |  |  |  | - |  |  |  | 856 |
Corporate debentures |  |  |  | 13,181 |  |  |  | 364 |  |  | - |  |  |  | 13,545 |  |  |  |  | 23,653 |  |  |  | 197 |  |  |  | (7 | ) |  |  | 23,843 |
|  |  |  | 13,560 |  |  |  | 367 |  |  | - |  |  |  | 13,927 |  |  |  |  | 24,508 |  |  |  | 198 |  |  |  | (7 | ) |  |  | 24,699 |
Available-for-sale - matures after three years through five years: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debentures |  |  |  | 535 |  |  |  | 8 |  |  | - |  |  |  | 543 |  |  |  |  | 4,806 |  |  |  | 58 |  |  |  | - |  |  |  | 4,864 |
|  |  |  | 535 |  |  |  | 8 |  |  | - |  |  |  | 543 |  |  |  |  | 4,806 |  |  |  | 58 |  |  |  | - |  |  |  | 4,864 |
|  |  | $ | 26,706 |  |  | $ | 472 |  | $ | - |  |  | $ | 27,178 |  |  |  | $ | 60,691 |  |  | $ | 336 |  |  | $ | (15 | ) |  | $ | 61,012 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration