Cash, Cash Equivalents and Marketable Securities - Schedule of Maturities of Debt Securities Available-for-sale (Details) |
Dec. 31, 2019
USD ($)
|
|---|---|
| Cash and Cash Equivalents [Abstract] | |
| Fair Value, Due within one year | $ 5,002,000 |
| Fair Value, Due after one year through five years | 603,000 |
| Fair Value, Debt Securities, Available-for-sale, Maturity | 5,605,000 |
| Net Carrying Amount, Due within one year | 5,019,000 |
| Net Carrying Amount, Due after one year through five years | 607,000 |
| Net Carrying Amount, Debt Securities, Available-for-sale, Maturity | $ 5,626,000 |
| X | ||||||||||
- Definition Net carrying value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. No definition available.
|
| X | ||||||||||
- Definition Net carrying value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date. No definition available.
|
| X | ||||||||||
- Definition Net carrying value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. No definition available.
|
| X | ||||||||||
- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|