Subsequent Events	3 Months Ended
Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Equity Offering On April 8, 2021, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with B. Riley Securities, Inc., as representative to the several underwriters named on Schedule A to the Underwriting Agreement (the “Underwriters”), relating to the Company’s public offering (the “Offering”) of 1,048,998 shares of Class B Common Stock (the “Firm Shares”) and an additional 157,349 shares of Class B Common Stock (the “Additional Shares,” and together with Firm Shares, the “Shares”). The Underwriters agreed to purchase the Firm Shares at a price of $38.00 per share. The Firm Shares were offered, issued, and sold pursuant to a prospectus supplement and accompanying prospectus filed with the SEC pursuant to an effective shelf registration statement filed with the SEC on Form S-3 (File No. 333-234340) under the Securities Act, and an effective registration statement filed with the SEC on Form S-3MEF (File. No. 333-255139) under the Securities Act. On April 13, 2021, the Company issued the Firm Shares and closed the Offering at a public price of $38.00 per share for net proceeds to the Company of approximately $36.7 million after deducting the underwriting discount and offering fees and expenses payable by the Company. The Underwriting Agreement included customary representations, warranties, and agreements by the Company, customary conditions to closing, indemnification obligations of the Company and the Underwriters, including for liabilities under the Securities Act, other obligations of the parties and termination provisions. The representations, warranties and covenants contained in the Underwriting Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to the agreement and were subject to limitations agreed upon by the contracting parties. The Company intends to use the net proceeds of the Offering for working capital and general corporate purposes. Pending these uses, the Company may invest the net proceeds in short-term interest-bearing investment grade instruments.

Subsequent Events

3 Months Ended

Mar. 31, 2021

Equity Offering

On April 8, 2021, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with B. Riley Securities, Inc., as representative to the several underwriters named on Schedule A to the Underwriting Agreement (the “Underwriters”), relating to the Company’s public offering (the “Offering”) of 1,048,998 shares of Class B Common Stock (the “Firm Shares”) and an additional 157,349 shares of Class B Common Stock (the “Additional Shares,” and together with Firm Shares, the “Shares”).

The Underwriters agreed to purchase the Firm Shares at a price of $38.00 per share. The Firm Shares were offered, issued, and sold pursuant to a prospectus supplement and accompanying prospectus filed with the SEC pursuant to an effective shelf registration statement filed with the SEC on Form S-3 (File No. 333-234340) under the Securities Act, and an effective registration statement filed with the SEC on Form S-3MEF (File. No. 333-255139) under the Securities Act.

On April 13, 2021, the Company issued the Firm Shares and closed the Offering at a public price of $38.00 per share for net proceeds to the Company of approximately $36.7 million after deducting the underwriting discount and offering fees and expenses payable by the Company.

The Underwriting Agreement included customary representations, warranties, and agreements by the Company, customary conditions to closing, indemnification obligations of the Company and the Underwriters, including for liabilities under the Securities Act, other obligations of the parties and termination provisions. The representations, warranties and covenants contained in the Underwriting Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to the agreement and were subject to limitations agreed upon by the contracting parties.

The Company intends to use the net proceeds of the Offering for working capital and general corporate purposes. Pending these uses, the Company may invest the net proceeds in short-term interest-bearing investment grade instruments.