Consolidated Statements of Stockholders' Equity - USD ($)	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balance, shares at Jun. 30, 2020		4,030	229,258,400
Balance, amount at Jun. 30, 2020	$ 80,172,849	$ 40	$ 2,292,584	$ 396,079,127	$ (318,198,902)
Stock-based compensation, shares			936,215
Stock-based compensation, amount	1,683,857		$ 9,362	1,674,495
Withholding taxes related to restricted stock units, shares			(160,308)
Withholding taxes related to restricted stock units, amount	(89,029)		$ (1,603)	(87,426)
Net loss	(13,932,551)				(13,932,551)
Balance, shares at Dec. 31, 2020		4,030	230,034,307
Balance, amount at Dec. 31, 2020	67,835,126	$ 40	$ 2,300,343	397,666,196	(332,131,453)
Balance, shares at Sep. 30, 2020		4,030	229,855,417
Balance, amount at Sep. 30, 2020	76,975,481	$ 40	$ 2,298,554	396,816,565	(322,139,678)
Stock-based compensation, shares			193,103
Stock-based compensation, amount	862,683	0	$ 1,931	860,752	0
Withholding taxes related to restricted stock units, shares			(14,213)
Withholding taxes related to restricted stock units, amount	(11,263)	$ 0	$ (142)	(11,121)	0
Net loss	(9,991,775)				(9,991,775)
Balance, shares at Dec. 31, 2020		4,030	230,034,307
Balance, amount at Dec. 31, 2020	67,835,126	$ 40	$ 2,300,343	397,666,196	(332,131,453)
Balance, shares at Jun. 30, 2021		4,030	230,049,691
Balance, amount at Jun. 30, 2021	49,651,372	$ 40	$ 2,300,497	399,146,232	(351,795,397)
Stock-based compensation, shares			1,624,158
Stock-based compensation, amount	1,256,168	0	$ 16,242	1,239,926	0
Withholding taxes related to restricted stock units, shares			(372,176)
Withholding taxes related to restricted stock units, amount	(208,270)	0	$ (3,722)	(204,548)	0
Net loss	$ (15,799,095)	0	$ 0	0	(15,799,095)
Warrant exercises, shares	43,600		350,000
Warrant exercises, amount	$ 280,000	0	$ 3,500	276,500	0
Option exercises, shares			43,600
Option exercises, amount	16,132	$ 0	$ 436	15,696	0
Balance, shares at Dec. 31, 2021		4,030	231,695,273
Balance, amount at Dec. 31, 2021	35,196,307	$ 40	$ 2,316,953	400,473,806	(367,594,492)
Balance, shares at Sep. 30, 2021		4,030	231,301,673
Balance, amount at Sep. 30, 2021	42,969,127	$ 40	$ 2,313,017	399,564,086	(358,908,016)
Stock-based compensation, amount	623,441	0	0	623,441	0
Net loss	(8,686,476)	0	$ 0	0	(8,686,476)
Warrant exercises, shares			350,000
Warrant exercises, amount	280,000	0	$ 3,500	276,500	0
Option exercises, shares			43,600
Option exercises, amount	16,132	0	$ 436	15,696	0
Withholding taxes related to restricted stock units	(5,917)	$ 0	$ 0	(5,917)	0
Balance, shares at Dec. 31, 2021		4,030	231,695,273
Balance, amount at Dec. 31, 2021	$ 35,196,307	$ 40	$ 2,316,953	$ 400,473,806	$ (367,594,492)