CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues
Total revenues	$ 4,296,371	$ 1,700,320	$ 14,609,360	$ 5,988,003
Total cost of product and clinical laboratory service revenues	3,257,113	1,116,106	9,972,479	2,572,455
Gross profit	1,039,258	584,214	4,636,881	3,415,548
Operating expenses:
Selling, general and administrative	3,013,967	2,883,812	11,224,015	9,349,647
Research and development	863,025	1,142,111	3,013,162	2,861,657
Total operating expenses	3,876,992	4,025,923	14,237,177	12,211,304
LOSS FROM OPERATIONS	(2,837,734)	(3,441,709)	(9,600,296)	(8,795,756)
Other (expense) income:
Interest income	0	3,572	5,813	11,975
Loss on extinguishment of debt	0	0	0	(1,774,662)
Gain on extinguishment of notes payable	0	0	0	839,945
Unrealized gain on change in fair value of the Common Warrants	1,758,200	0	2,540,700	0
Transaction costs related to warrant liabilities	0	0	(391,335)	0
Other expense, net	(45,263)	(8,578)	(160,387)	(52,357)
Loss before provision for income taxes	(1,124,797)	(3,446,715)	(7,605,505)	(9,770,855)
Provision for income taxes	0	0	0	0
NET LOSS	(1,124,797)	(3,446,715)	(7,605,505)	(9,770,855)
Less: Net loss (income) attributable to noncontrolling interest	576	(2,278)	833	(4,494)
NET LOSS attributable to Applied DNA Sciences, Inc.	(1,124,221)	(3,448,993)	(7,604,672)	(9,775,349)
Deemed dividend related to warrant modifications	0	0	110,105	0
NET LOSS attributable to common stockholders	$ (1,124,221)	$ (3,448,993)	$ (7,714,777)	$ (9,775,349)
Net loss per share attributable to common stockholders - basic	$ (0.13)	$ (0.48)	$ (0.94)	$ (1.45)
Net loss per share attributable to common stockholders - diluted	$ (0.13)	$ (0.48)	$ (0.94)	$ (1.45)
Weighted average shares outstanding - basic	8,982,520	7,235,031	8,184,807	6,724,503
Weighted average shares outstanding - diluted	8,982,520	7,235,031	8,184,807	6,724,503
Product revenues
Revenues
Total revenues	$ 219,765	$ 639,637	$ 1,454,427	$ 2,154,844
Total cost of product and clinical laboratory service revenues	307,049	577,480	1,211,959	1,215,499
Service revenues
Revenues
Total revenues	182,796	234,070	570,759	678,896
Clinical laboratory service revenues
Revenues
Total revenues	3,893,810	826,613	12,584,174	3,154,263
Total cost of product and clinical laboratory service revenues	$ 2,950,064	$ 538,626	$ 8,760,520	$ 1,356,956