EQUITY INCENTIVE PLAN, Part 1 (Details) - USD ($)				3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 25, 2021	Jan. 03, 2020	Sep. 22, 2011	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jun. 18, 2019	Jun. 19, 2014	Jun. 03, 2008
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Allocated share-based compensation expense				$ 636,531	$ 477,204	$ 1,802,056	$ 824,345
Stock options, additional disclosure [Abstract]
Outstanding, aggregate intrinsic value, end of period				84,016		84,016
Exercisable, aggregate intrinsic value, end of period				$ 34,772		$ 34,772
Total fair value of stock options vested during period		$ 943,126
Stock Options [Member]
Assumptions made in calculating fair values of options [Abstract]
Expected term				6 years		5 years
Expected volatility				85.33%		78.28%
Expected dividend yield
Risk-free interest rate				1.00%		0.81%
Stock options, number of shares [Roll forward]
Outstanding, beginning of period (in shares)						974,778
Granted (in shares)						932,135
Exercised (in shares)						36,252
Forfeited (in shares)						31,212
Expired (in shares)						53,125
Outstanding, end of period (in shares)				1,786,324		1,786,324		974,778
Exercisable, end of period (in shares)				461,833		461,833
Stock options, weighted average exercise price per share [Roll Forward]
Outstanding, beginning of period (in dollars per share)						$ 4.12
Granted (in dollars per share)						4.72
Exercised (in dollars per share)						2.36
Forfeited (in dollars per share)						9.19
Expired (in dollars per share)						8.68
Outstanding, end of period (in dollars per share)				$ 4.25		4.25		$ 4.12
Exercisable, end of period (in dollars per share)				$ 4.57		$ 4.57
Stock options, additional disclosure [Abstract]
Outstanding, weighted average remaining contract term						7 years		2 years 10 months 13 days
Exercisable, weighted average remaining contract term						4 years 18 days
Outstanding, aggregate intrinsic value, beginning of period						$ 1,520,910
Granted, aggregate intrinsic value						0
Exercised, aggregate intrinsic value						0
Forfeited, aggregate intrinsic value						0
Outstanding, aggregate intrinsic value, end of period				$ 84,016		84,016		$ 1,520,910
Exercisable, aggregate intrinsic value, end of period				34,772		34,772
Net unrecognized compensation cost				$ 2,609,700		$ 2,609,700
Weighted average period for recognition of net unrecognized compensation cost						2 years 7 months 28 days
Total fair value of stock options vested during period						$ 335,579	172,145
2008 Stock Incentive Plan [Member] | Stock Options [Member]
Share-based Arrangements with Employees and Nonemployees [Abstract]
Number of shares authorized under the plan (in shares)			750,000								625,000
Increase in number of shares authorized (in shares)			125,000
Number of stock options expired, forfeited or exercised under the plan (in shares)						714,000
Options still available to be issued (in shares)				0		0
Stock options, number of shares [Roll forward]
Outstanding, end of period (in shares)				36,000		36,000
2014 Stock Incentive Plan [Member] | Stock Options [Member]
Share-based Arrangements with Employees and Nonemployees [Abstract]
Number of shares authorized under the plan (in shares)										800,000
Number of stock options expired, forfeited or exercised under the plan (in shares)						566,658
Options still available to be issued (in shares)				0		0
Stock options, number of shares [Roll forward]
Outstanding, end of period (in shares)				212,281		212,281
2019 Omnibus Incentive Plan [Member] | Stock Options [Member]
Share-based Arrangements with Employees and Nonemployees [Abstract]
Number of shares authorized under the plan (in shares)	4,800,000								2,400,000
Increase in number of shares authorized (in shares)	2,400,000
Number of stock options expired, forfeited or exercised under the plan (in shares)						448,584
Options still available to be issued (in shares)				3,051,405		3,051,405
Stock options, number of shares [Roll forward]
Outstanding, end of period (in shares)				2,193,355		2,193,355
2014 & 2019 Stock Incentive Plan [Member] | Stock Options [Member]
Share-based Arrangements with Employees and Nonemployees [Abstract]
Shares not issued (in shares)				21,061		21,061
Cost of Product Sales [Member]
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Allocated share-based compensation expense				$ 52,819	0	$ 124,955	6,300
Research and Development Expenses [Member]
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Allocated share-based compensation expense				164,560	126,333	388,264	281,070
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Allocated share-based compensation expense				419,152	350,871	1,288,837	960,959
Severance and Related Costs [Member]
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Allocated share-based compensation expense				$ 0	$ 0	$ 0	$ (423,984)