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Marketable Securities | 6 Months Ended
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Jun. 30, 2019
Marketable Securities [Abstract] |
Marketable Securities | Note 8 – Marketable Securities ﻿ The Company’s current investment policy is to invest in cash, certificates of deposit, U.S. Treasury securities, U.S. government agency obligations and money market funds invested in U.S. government securities. Marketable securities of $18,019 as of December 31, 2018 consisted of U.S. Treasury securities held to maturity and certificates of deposit with original maturities of greater than 90 days and up to one year. The Company had no marketable securities as of June 30, 2019. Due to the short-term nature of these securities and their low interest rates, there is no material difference between their fair market values and amortized costs.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
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