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v3.19.3

Investments and Fair Value Measurements (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Dec. 31, 2018
Cash, cash equivalents and investments [Abstract] |  |  |
Cash | $ 27,837,000 | $ 27,837,000 | $ 16,526,000
Cash equivalents [Abstract] |  |  |
Total cash and cash equivalents | 27,837,000 | 27,837,000 | 16,526,000
Amortized Cost | 10,641,000 | 10,641,000 | 22,930,000
Cash, cash equivalents and investments, amortized costs | 38,478,000 | 38,478,000 | 39,456,000
Gross Unrealized Gain | 7,000 | 7,000 |
Gross Unrealized (Loss) | (13,000) | (13,000) | (84,000)
Fair Value | 10,635,000 | 10,635,000 | 22,846,000
Cash, cash equivalents and investments, amortized costs |  | 38,472,000 | 39,372,000
Contractual maturities on investments, amortized cost basis [Abstract] |  |  |
Due within 1 year | 6,109,000 | 6,109,000 | 22,210,000
Due after 1 through 5 years | 4,532,000 | 4,532,000 | 720,000
Investments, amortized cost | 10,641,000 | 10,641,000 | 22,930,000
Contractual maturities on investments, fair value basis [Abstract] |  |  |
Due within 1 year | 6,116,000 | 6,116,000 | 22,129,000
Due after 1 through 5 years | 4,519,000 | 4,519,000 | 717,000
Investments, fair value | 10,635,000 | 10,635,000 | 22,846,000
Transfers between fair value measurements | 0 | 0 |
Total Investments |  |  |
Cash equivalents [Abstract] |  |  |
Amortized Cost | 10,641,000 | 10,641,000 | 22,930,000
Gross Unrealized Gain | 7,000 | 7,000 |
Gross Unrealized (Loss) | (13,000) | (13,000) | (84,000)
Fair Value | 10,635,000 | 10,635,000 | 22,846,000
Contractual maturities on investments, amortized cost basis [Abstract] |  |  |
Investments, amortized cost | 10,641,000 | 10,641,000 | 22,930,000
Contractual maturities on investments, fair value basis [Abstract] |  |  |
Investments, fair value | 10,635,000 | 10,635,000 | 22,846,000
Certificates of Deposit [Member] |  |  |
Cash equivalents [Abstract] |  |  |
Amortized Cost | 3,600,000 | 3,600,000 | 4,508,000
Gross Unrealized Gain | 2,000 | 2,000 |
Gross Unrealized (Loss) |  |  | (27,000)
Fair Value | 3,602,000 | 3,602,000 | 4,481,000
Contractual maturities on investments, amortized cost basis [Abstract] |  |  |
Investments, amortized cost | 3,600,000 | 3,600,000 | 4,508,000
Contractual maturities on investments, fair value basis [Abstract] |  |  |
Investments, fair value | 3,602,000 | 3,602,000 | 4,481,000
Corporate Bonds [Member] |  |  |
Cash equivalents [Abstract] |  |  |
Amortized Cost | 7,041,000 | 7,041,000 | 18,422,000
Gross Unrealized Gain | 5,000 | 5,000 |
Gross Unrealized (Loss) | (13,000) | (13,000) | (57,000)
Fair Value | 7,033,000 | 7,033,000 | 18,365,000
Contractual maturities on investments, amortized cost basis [Abstract] |  |  |
Investments, amortized cost | 7,041,000 | 7,041,000 | 18,422,000
Contractual maturities on investments, fair value basis [Abstract] |  |  |
Investments, fair value | $ 7,033,000 | $ 7,033,000 | $ 18,365,000

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