Subsequent Events	3 Months Ended
Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events Common Stock Purchase Agreement On May 6, 2022, the Company entered into a Common Stock Purchase Agreement and a Registration Rights Agreement (collectively referred to as the “Purchase Agreement”) with B. Riley Principal Capital, LLC (“B. Riley”). Pursuant to the Purchase Agreement, the Company has the right, in its sole discretion, to sell to B. Riley up to $75.0 million of shares of the Company’s Class A common stock at 97% of the volume weighted average price ("VWAP") of the Class A common stock calculated in accordance with the Purchase Agreement, over a period of 24 months subject to certain limitations and conditions contained in the Purchase Agreement. Sales and timing of any sales of Class A common stock are solely at the election of the Company, and the Company is under no obligation to sell any securities to B. Riley under the Purchase Agreement. As consideration for B. Riley’s commitment to purchase shares of the Company’s Class A common stock, the Company has issued 21,969 shares of its Class A common stock as initial commitment shares and will issue an aggregate of 65,907 shares of its Class A common stock as additional commitment shares if certain conditions are met. Agreement with former Chief Financial Officer and Director On May 16, 2022, the Company entered into a consulting agreement by and between the Company, AST LLC, and Thomas Severson, the former Chief Financial Officer and Director of the Company (the "Consulting Agreement") to assist with the transition of his duties. Under the Consulting Agreement, Mr. Severson will provide consulting services through April 6, 2023, and the Company will reimburse any of Mr. Severson’s reasonable out-of-pocket expenses. Mr. Severson has also agreed to certain transfer restrictions relating to the Company’s securities. The foregoing summary of the Consulting Agreement does not purport to be complete and is qualified in its entirety by reference to the Agreement, which is filed as Exhibit 10.2 and is incorporated herein by reference. Further, on May 16, 2022, the Company extended a non-recourse loan in the amount of $1.0 million at an interest rate of 8.00% per annum to Mr. Severson. Both the loan and interest on loan are due for repayment on the second anniversary of its effective date. The loan may be prepaid at any time and is subject to certain mandatory prepayment conditions. The loan is secured by a pledge of $2.0 million of Mr. Severson’s equity securities in AST LLC.

Subsequent Events

3 Months Ended

Mar. 31, 2022

16.

Subsequent Events

Common Stock Purchase Agreement

On May 6, 2022, the Company entered into a Common Stock Purchase Agreement and a Registration Rights Agreement (collectively referred to as the “Purchase Agreement”) with B. Riley Principal Capital, LLC (“B. Riley”). Pursuant to the Purchase Agreement, the Company has the right, in its sole discretion, to sell to B. Riley up to $75.0 million of shares of the Company’s Class A common stock at 97% of the volume weighted average price ("VWAP") of the Class A common stock calculated in accordance with the Purchase Agreement, over a period of 24 months subject to certain limitations and conditions contained in the Purchase Agreement. Sales and timing of any sales of Class A common stock are solely at the election of the Company, and the Company is under no obligation to sell any securities to B. Riley under the Purchase Agreement. As consideration for B. Riley’s commitment to purchase shares of the Company’s Class A common stock, the Company has issued 21,969 shares of its Class A common stock as initial commitment shares and will issue an aggregate of 65,907 shares of its Class A common stock as additional commitment shares if certain conditions are met.

Agreement with former Chief Financial Officer and Director

On May 16, 2022, the Company entered into a consulting agreement by and between the Company, AST LLC, and Thomas Severson, the former Chief Financial Officer and Director of the Company (the "Consulting Agreement") to assist with the transition of his duties. Under the Consulting Agreement, Mr. Severson will provide consulting services through April 6, 2023, and the Company will reimburse any of Mr. Severson’s reasonable out-of-pocket expenses. Mr. Severson has also agreed to certain transfer restrictions relating to the Company’s securities. The foregoing summary of the Consulting Agreement does not purport to be complete and is qualified in its entirety by reference to the Agreement, which is filed as Exhibit 10.2 and is incorporated herein by reference.

Further, on May 16, 2022, the Company extended a non-recourse loan in the amount of $1.0 million at an interest rate of 8.00% per annum to Mr. Severson. Both the loan and interest on loan are due for repayment on the second anniversary of its effective date. The loan may be prepaid at any time and is subject to certain mandatory prepayment conditions. The loan is secured by a pledge of $2.0 million of Mr. Severson’s equity securities in AST LLC.