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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($)		3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2020
Accounting Policies [Line Items]
Cash, cash equivalents, and marketable securities	$ 28,500,000	$ 28,500,000			$ 28,500,000			$ 41,400,000
Milestone payment received					(1,089,977)	$ 28,408,434
Revenue recognized under "ERC"	191,463						$ 191,199
Receivables under "ERC"	$ 547,580	547,580			547,580		$ 738,778		$ 738,778
Depreciation		276,471		$ 137,028	761,274	341,529
Research and development		10,028,964		5,504,356	26,507,872	15,585,143
Comprehensive loss		$ 6,457,093		$ 6,271,478	$ 21,517,489	$ 21,176,153
Antidilutive securities		8,303,253		6,059,552	8,303,253	6,059,552
Grant Income		$ 0		$ 0	$ 0	$ 0
Commercialization and Distribution Agreement with Nippon Shinyaku Co, Limited, Japan
Accounting Policies [Line Items]
Milestone payment received			$ 12,000,000.0
Minimum
Accounting Policies [Line Items]
Estimated useful lives (in years)	5 years	5 years			5 years
Maximum
Accounting Policies [Line Items]
Estimated useful lives (in years)	7 years	7 years			7 years

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