Subsequent Events	3 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	14.   Subsequent Events On April 14, 2022, the Company announced that the Board of Directors approved a rights offering (the “2022 Rights Offering”) available to all holders of record of the Company’s common stock, par value $0.001 per share (the “Common Stock”) as of the close of market on April 25, 2022. The 2022 Rights Offering will be made through the distribution of non-transferable subscription rights to purchase up to an aggregate of $15,000,000 worth of units (“Units”), with each Unit consisting of (i) one share of Common Stock, and (ii) a warrant to purchase one share of Common Stock (the “Warrants”), in a public offering that commenced on May 4, 2022. The subscription price for each Unit will be equal to the lesser of (i) $3.72, the closing price of the Common Stock on April 13, 2022, and (ii) the volume weighted average price of the Common Stock for the five trading day period through and including the expiration date of the offering, May 23, 2022. The 2022 Rights Offering includes an over-subscription right to permit each rights holder that exercises its basic subscription rights in full to purchase additional Units that remain unsubscribed at the expiration of the offering, subject to availability on a pro rata basis.