10. Stockholders’ Equity (Details Narrative) - USD ($)	1 Months Ended		6 Months Ended		9 Months Ended
	Sep. 30, 2020	Aug. 31, 2019	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2021	Mar. 31, 2021	Sep. 04, 2020
Class of Warrant or Right [Line Items]
Preferred stock, authorized (in shares)			10,000,000			10,000,000
Preferred stock, per value (in usd per share)			$ 0.001			$ 0.001
Preferred stock, outstanding (in shares)			0			0
Common stock, authorized (in shares)			240,000,000			240,000,000	240,000,000
Common stock voting right			Each share of common stock is entitled to one voting right
Proceeds from exercise of warrants				$ 7,252,000
September 2020 Warrants [Member]
Class of Warrant or Right [Line Items]
Number of shares of common stock issued	6,648,750
Warrants exercisable as of June 30, 2021			1.0
August 232019 [Member]
Class of Warrant or Right [Line Items]
Number of shares of common stock issued		4,475,000
August 2019 Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants exercisable as of June 30, 2021			900,000
September 2020 Warrants [Member]
Class of Warrant or Right [Line Items]
Warrant description	On September 4, 2020, the Company entered into a securities purchase agreement with certain institutional investors pursuant to which the Company issued and sold an aggregate of 8,865,000 shares of common stock in a registered direct offering and issued warrants to purchase up to 6,648,750 shares of common stock in a concurrent private placement (the “September 2020 Warrants”). The September 2020 Warrants are exercisable for 6,648,750 shares of common stock at an exercise price per share equal to $0.84. The September 2020 Warrants became exercisable beginning on March 9, 2021 and will expire on March 9, 2026.
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.84					$ 0.84
Date on which warrants became exercisable					Mar. 09, 2021
Number of warrants exercised			0	5,600,000
Proceeds from exercise of warrants			$ 0	$ 4,700,000
August 2019 Warrants [Member]
Class of Warrant or Right [Line Items]
Warrant description		On August 23, 2019, the Company entered into a securities purchase agreement with certain institutional investors pursuant to which the Company issued and sold an aggregate of 4,475,000 shares of common stock in a registered direct offering and issued warrants to purchase up to 2,237,500 shares of common stock in a concurrent private placement (the “August 2019 Warrants”). The August 2019 Warrants were initially exercisable for 2,237,500 shares of common stock at an exercise price per share equal to $1.78. The August 2019 Warrants became exercisable beginning on February 27, 2020 and will expire on August 28, 2023.
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 1.78
Date on which warrants became exercisable			Feb. 27, 2020
Number of warrants exercised			0	1,300,000
Proceeds from exercise of warrants			$ 0	$ 2,400,000
Series A Warrants [Member]
Class of Warrant or Right [Line Items]
Warrant description					On January 24, 2019, STI and the Company closed a private placement with certain accredited investors pursuant to which, among other things, the Company issued warrants representing the right to acquire 1,463,519 shares of common stock (the “Series A Warrants”). The Series A Warrants were initially exercisable for 1,463,519 shares of common stock at an exercise price per share equal to $4.15, which was adjusted several times pursuant to the terms thereof to 3,629,023 shares of common stock at an exercise price per share equal to $0.2957 per share. The most recent adjustment to the exercise price (from $0.60 to $0.2957 per share) occurred during the three months ended September 30, 2020 as a result of the announcement of the registered direct offering of 8,865,000 shares of common stock in September 2020. The Series A Warrants were immediately exercisable upon issuance and will expire on January 31, 2024.
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.2957
Number of warrants exercised			0	500,000
Proceeds from exercise of warrants			$ 0	$ 100,000
Warrants exercisable as of June 30, 2021			300,000