CAPITAL STOCK	12 Months Ended
Sep. 30, 2015
Stockholders' Equity Note [Abstract]
CAPITAL STOCK	NOTE I – CAPITAL STOCK Common Stock Transactions during and subsequent to the Fiscal Year Ended September 30, 2015: On October 24, 2014, the Company filed a Third Certificate of Amendment of its Certificate of Incorporation with the Secretary of State of the State of Delaware that effected a one-for-60 (1:60) reverse stock split of its common stock, par value $.001 per share, and a decrease in its authorized common stock, from 1,350,000,000 to 500,000,000 shares, effective October 29, 2014. All warrant, option, share, and per share information in the consolidated financial statements gives retroactive effect to the one-for-60 reverse stock split that was effected on October 29, 2014. In addition, the Company is authorized to issue 10,000,000 shares of preferred stock with a $0.001 par value per share. As of September 30, 2015 and 2014, there were 21,504,578 and 13,935,954 shares of common stock issued and outstanding, respectively. On November 20, 2014, the Company closed its underwritten public offering of 2,800,000 shares of common stock and warrants to purchase up to an aggregate of 2,800,000 shares of common stock for gross proceeds of $9.1 million before deducting underwriting discounts and offering expenses. The Company utilized $4,091,000 of the gross proceeds to repurchase the remaining Series B Warrants from Crede, as discussed in Note E. The combined price for each share of common stock and one warrant was $3.25. The warrants may be exercised for a period of five years and have an exercise price of $3.50 per share. In connection with the offering, the Company granted to the underwriters a 45-day option to purchase up to 420,000 additional shares of common stock at $3.24 per share and/or up to 420,000 additional warrants at $0.01 per share to cover over-allotments, if any. The Company’s Chief Executive Officer and an affiliated company of a member of the Company’s board of directors participated in this underwritten public offering. The Company’s common stock and warrants are listed on the Nasdaq Capital Market under the symbols “APDN” and “APDNW”, respectively. On December 19, 2014, the Company closed on the underwriters’ exercise of its over-allotment option of 416,850 warrants for gross proceeds of $4,169 and on December 30, 2014, the Company closed on the underwriters’ additional exercise of its over-allotment option of 52,000 shares of common stock for gross proceeds of $168,480. The total number of common stock and warrants issued under this offering, including the exercise of the over-allotment option was 2,852,000 and 3,216,850, respectively. The gross proceeds to the Company was $9.3 million and net proceeds after deducting underwriting discounts, offering expenses and the repurchase of the remaining Series B Warrants from Crede was approximately $3.69 million. In connection with the closing of this underwritten public offering, on November 20, 2014, the Company granted 128,800 warrants to purchase common stock to its underwriters as partial compensation. These warrants have an exercise price of $3.73 (115% of the public offering price) and expire on November 14, 2019. See Note F for the common stock and warrants issued in connection with the conversion of the promissory notes. During the fiscal year ended September 30, 2015, the Company granted 40,500 shares of common stock to consultants for a total expense of approximately $136,281 pursuant to the Company’s 2005 Incentive Stock Plan. On April 1, 2015, the Company closed its underwritten public offering of 4,011,000 shares of common stock and warrants to purchase up to an aggregate of 1,604,400 shares of common stock, at $3.00 ($2.99 for one share of common stock and $0.01 for one warrant) (“combined offering price”), including 191,000 shares and 76,400 warrants sold pursuant to the partial exercise of the underwriters’ over-allotment option. The warrants have a per share exercise price of $3.50, are exercisable immediately, and expire on November 20, 2019. The gross proceeds to the Company from this offering, including the partial exercise of the over-allotment option but before deducting the underwriting discount and offering expenses, were $12.0 million . In connection with the offering, the Company granted to the underwriters a 45-day option to purchase up to 573,000 additional shares of common stock and up to 229,200 additional warrants to cover over-allotments, if any. On April 30, 2015, the Company closed on the underwriters’ exercise of its over-allotment option of 87,000 shares of common stock and 152,800 warrants for gross proceeds of $263,950. In connection with the closing of this underwritten public offering, as partial compensation, on April 1, 2015, the Company granted up to 163,720 warrants to purchase common stock to its underwriters. These warrants have an exercise price of $3.44 (115% of the public offering price) and expire on March 27, 2020. On November 23, 2015, the Company entered into a securities purchase agreement with certain institutional investors providing for the purchase and sale of 2,500,000 shares of common stock at a price of $3.49 per share in a registered direct public offering. In a concurrent private placement, the Company sold warrants to purchase 1,250,000 shares of its common stock at a price of $0.01 per warrant, with an exercise price of $4.30 per share. The warrants will be exercisable beginning six months following the closing date of the private placement and will expire five years from the date on which they become exercisable. The gross proceeds to the Company from this registered direct offering and private placement before deducting the placement agent fees and offering expenses, is $8.75 million. In connection with the closing of the registered direct public offering and the private placement, as partial compensation, on November 25, 2015, the Company granted warrants to purchase 50,000 shares of common stock to its placement agent. These warrants have an exercise price of $4.03 (115% of the public offering price), subject to adjustment as set forth therein, will be exercisable beginning six months following the closing date of the Private Placement and expire at 5:00 PM (Eastern Standard Time) on November 25, 2020. Common Stock Transactions during the Fiscal Year Ended September 30, 2014: On December 16, 2013, Crede effected the cashless exercise of 178,253 Series A Warrants and 116,667 Series B Warrants, and the Company thereupon issued to Crede an aggregate of 313,718 shares of its common stock (see Note G). On December 20, 2013, 41,667 shares of the Company’s common stock were issued in connection with a settlement resulting from the termination of a consulting agreement. The fair value of the common stock was determined using the Company’s stock price on December 20, 2013. The total fair value of $337,501 was charged to operations. On February 11, 2014, 12,446 shares of the Company’s common stock were issued in connection with the cashless exercise of 16,667 warrants to acquire the Company’s Common Stock. On June 3, 2014, the Company closed a private placement of its common stock and warrants to purchase common stock with a group of investors, including members of the Company’s senior management team and the Board of Directors, pursuant to subscription agreements for gross proceeds of $2,145,956 (“Private placement”). The Company issued and sold 312,257 shares of its common stock at a purchase price of $6.87 per share and warrants to purchase 312,257 shares of Common Stock. The purchase price of the Common Stock represented a 5% discount to the volume weighted average closing price of the Company’s common stock from May 13, 2014 to May 16, 2014, which ranged from $6.93 to $7.47 per share during the period. The Warrants are exercisable at a price of $8.25 per share (representing a 20% premium to the Purchase Price) for a period of one year and do not have cashless exercise provisions. The common stock purchased as well as the common stock to be issued upon exercise of the Warrants will be subject to the six month holding period provisions of Rule 144 under the Securities Act. On July 8, 2014, the Company closed on an additional subscription agreement under this private placement, with the same terms as disclosed above. The Company issued and sold 1,500 shares of its Common Stock and warrants to purchase 1,500 shares of common stock for total proceeds of $10,308. This Private placement triggered the anti-dilution provision of the remaining Crede Series B warrants, as the purchase price of the common stock and the exercise price of the Warrants issued with the Private placement were below the exercise price in effect for the Crede Series B warrants. The exercise price of the Crede Series B warrants was adjusted from $14.59 to $14.09 per share and the number of warrants increased from 373,529 to 386,618 as of June 30, 2014. The Crede Series B warrants were further diluted with the issuance on July 8, 2014 of common stock and warrants as the exercise price was further adjusted to$14.06 and the number of warrants was increased to 387,621 (see Note G). On August 19, 2014, 145,583 shares of the Company’s common stock were issued in connection with the cashless exercise of 341,668 options to acquire the Company’s common stock.

CAPITAL STOCK

12 Months Ended

Sep. 30, 2015

Stockholders' Equity Note [Abstract]

NOTE I – CAPITAL STOCK

Common Stock Transactions during and subsequent to the Fiscal Year Ended September 30, 2015:

On October 24, 2014, the Company filed a Third Certificate of Amendment of its Certificate of Incorporation with the Secretary of State of the State of Delaware that effected a one-for-60 (1:60) reverse stock split of its common stock, par value $.001 per share, and a decrease in its authorized common stock, from 1,350,000,000 to 500,000,000 shares, effective October 29, 2014. All warrant, option, share, and per share information in the consolidated financial statements gives retroactive effect to the one-for-60 reverse stock split that was effected on October 29, 2014. In addition, the Company is authorized to issue 10,000,000 shares of preferred stock with a $0.001 par value per share. As of September 30, 2015 and 2014, there were 21,504,578 and 13,935,954 shares of common stock issued and outstanding, respectively.

On November 20, 2014, the Company closed its underwritten public offering of 2,800,000 shares of common stock and warrants to purchase up to an aggregate of 2,800,000 shares of common stock for gross proceeds of $9.1 million before deducting underwriting discounts and offering expenses. The Company utilized $4,091,000 of the gross proceeds to repurchase the remaining Series B Warrants from Crede, as discussed in Note E. The combined price for each share of common stock and one warrant was $3.25. The warrants may be exercised for a period of five years and have an exercise price of $3.50 per share. In connection with the offering, the Company granted to the underwriters a 45-day option to purchase up to 420,000 additional shares of common stock at $3.24 per share and/or up to 420,000 additional warrants at $0.01 per share to cover over-allotments, if any. The Company’s Chief Executive Officer and an affiliated company of a member of the Company’s board of directors participated in this underwritten public offering. The Company’s common stock and warrants are listed on the Nasdaq Capital Market under the symbols “APDN” and “APDNW”, respectively. On December 19, 2014, the Company closed on the underwriters’ exercise of its over-allotment option of 416,850 warrants for gross proceeds of $4,169 and on December 30, 2014, the Company closed on the underwriters’ additional exercise of its over-allotment option of 52,000 shares of common stock for gross proceeds of $168,480. The total number of common stock and warrants issued under this offering, including the exercise of the over-allotment option was 2,852,000 and 3,216,850, respectively. The gross proceeds to the Company was $9.3 million and net proceeds after deducting underwriting discounts, offering expenses and the repurchase of the remaining Series B Warrants from Crede was approximately $3.69 million.

In connection with the closing of this underwritten public offering, on November 20, 2014, the Company granted 128,800 warrants to purchase common stock to its underwriters as partial compensation. These warrants have an exercise price of $3.73 (115% of the public offering price) and expire on November 14, 2019.

See Note F for the common stock and warrants issued in connection with the conversion of the promissory notes.

During the fiscal year ended September 30, 2015, the Company granted 40,500 shares of common stock to consultants for a total expense of approximately $136,281 pursuant to the Company’s 2005 Incentive Stock Plan.

On April 1, 2015, the Company closed its underwritten public offering of 4,011,000 shares of common stock and warrants to purchase up to an aggregate of 1,604,400 shares of common stock, at $3.00 ($2.99 for one share of common stock and $0.01 for one warrant) (“combined offering price”), including 191,000 shares and 76,400 warrants sold pursuant to the partial exercise of the underwriters’ over-allotment option. The warrants have a per share exercise price of $3.50, are exercisable immediately, and expire on November 20, 2019. The gross proceeds to the Company from this offering, including the partial exercise of the over-allotment option but before deducting the underwriting discount and offering expenses, were $12.0 million . In connection with the offering, the Company granted to the underwriters a 45-day option to purchase up to 573,000 additional shares of common stock and up to 229,200 additional warrants to cover over-allotments, if any. On April 30, 2015, the Company closed on the underwriters’ exercise of its over-allotment option of 87,000 shares of common stock and 152,800 warrants for gross proceeds of $263,950.

In connection with the closing of this underwritten public offering, as partial compensation, on April 1, 2015, the Company granted up to 163,720 warrants to purchase common stock to its underwriters. These warrants have an exercise price of $3.44 (115% of the public offering price) and expire on March 27, 2020.

On November 23, 2015, the Company entered into a securities purchase agreement with certain institutional investors providing for the purchase and sale of 2,500,000 shares of common stock at a price of $3.49 per share in a registered direct public offering. In a concurrent private placement, the Company sold warrants to purchase 1,250,000 shares of its common stock at a price of $0.01 per warrant, with an exercise price of $4.30 per share. The warrants will be exercisable beginning six months following the closing date of the private placement and will expire five years from the date on which they become exercisable. The gross proceeds to the Company from this registered direct offering and private placement before deducting the placement agent fees and offering expenses, is $8.75 million.

In connection with the closing of the registered direct public offering and the private placement, as partial compensation, on November 25, 2015, the Company granted warrants to purchase 50,000 shares of common stock to its placement agent. These warrants have an exercise price of $4.03 (115% of the public offering price), subject to adjustment as set forth therein, will be exercisable beginning six months following the closing date of the Private Placement and expire at 5:00 PM (Eastern Standard Time) on November 25, 2020.

Common Stock Transactions during the Fiscal Year Ended September 30, 2014:

On December 16, 2013, Crede effected the cashless exercise of 178,253 Series A Warrants and 116,667 Series B Warrants, and the Company thereupon issued to Crede an aggregate of 313,718 shares of its common stock (see Note G).

On December 20, 2013, 41,667 shares of the Company’s common stock were issued in connection with a settlement resulting from the termination of a consulting agreement. The fair value of the common stock was determined using the Company’s stock price on December 20, 2013. The total fair value of $337,501 was charged to operations.

On February 11, 2014, 12,446 shares of the Company’s common stock were issued in connection with the cashless exercise of 16,667 warrants to acquire the Company’s Common Stock.

On June 3, 2014, the Company closed a private placement of its common stock and warrants to purchase common stock with a group of investors, including members of the Company’s senior management team and the Board of Directors, pursuant to subscription agreements for gross proceeds of $2,145,956 (“Private placement”). The Company issued and sold 312,257 shares of its common stock at a purchase price of $6.87 per share and warrants to purchase 312,257 shares of Common Stock. The purchase price of the Common Stock represented a 5% discount to the volume weighted average closing price of the Company’s common stock from May 13, 2014 to May 16, 2014, which ranged from $6.93 to $7.47 per share during the period. The Warrants are exercisable at a price of $8.25 per share (representing a 20% premium to the Purchase Price) for a period of one year and do not have cashless exercise provisions. The common stock purchased as well as the common stock to be issued upon exercise of the Warrants will be subject to the six month holding period provisions of Rule 144 under the Securities Act.

On July 8, 2014, the Company closed on an additional subscription agreement under this private placement, with the same terms as disclosed above. The Company issued and sold 1,500 shares of its Common Stock and warrants to purchase 1,500 shares of common stock for total proceeds of $10,308.

This Private placement triggered the anti-dilution provision of the remaining Crede Series B warrants, as the purchase price of the common stock and the exercise price of the Warrants issued with the Private placement were below the exercise price in effect for the Crede Series B warrants. The exercise price of the Crede Series B warrants was adjusted from $14.59 to $14.09 per share and the number of warrants increased from 373,529 to 386,618 as of June 30, 2014. The Crede Series B warrants were further diluted with the issuance on July 8, 2014 of common stock and warrants as the exercise price was further adjusted to$14.06 and the number of warrants was increased to 387,621 (see Note G).

On August 19, 2014, 145,583 shares of the Company’s common stock were issued in connection with the cashless exercise of 341,668 options to acquire the Company’s common stock.