Marketable Securities	3 Months Ended
	Mar. 31, 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 March 31, 2021, the Company had a total of $15.1 million of total marketable securities all invested in U.S. Treasury's of which approximately $2.5 million was classified as a long term asset, as the maturity is greater than on year, and $12.6 million 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.