Marketable Securities	9 Months Ended
Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Marketable SecuritiesThe Company invests in debt securities and has the intent and ability to hold until maturity. Therefore, the Company's Securities are classified as held-to-maturity. The Company's debt securities are all U.S. Treasury securities. The investments in debt securities are carried at either amortized cost or fair value. As of September 30, 2021, the Company had a total of $15.0 million of total marketable securities, all invested in U.S. Treasury securities all of which is classified as a short term asset as the maturity is greater than three months, but less than one year. Any debt securities with original maturities of three months or less are classified as cash equivalents.

The entire disclosure for investments in certain debt and equity securities.

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

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1403
-Paragraph (b)

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