Outlook Therapeutics (OTLK) 10-Q 15 May 17 2017 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Mar. 31, 2017	May 11, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	Oncobiologics, Inc.
Entity Central Index Key	1,649,989
Trading Symbol	ons
Current Fiscal Year End Date	--09-30
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		24,453,013
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($)	Mar. 31, 2017	Sep. 30, 2016
Current assets:
Cash	$ 81,049	$ 2,351,887
Prepaid and other current assets	773,632	3,326,607
Total current assets	854,681	5,678,494
Property and equipment, net	15,786,378	16,958,553
Restricted cash		216,086
Other assets	819,251	852,801
Total assets	17,460,310	23,705,934
Current liabilities:
Senior secured notes	6,611,141
Current portion of debt	74,749	586,454
Current portion of capital lease obligations	840,105	977,248
Current portion of stockholder notes	4,612,500	4,612,500
Accounts payable	12,153,079	5,071,520
Accrued expenses	7,419,601	6,121,942
Income taxes payable	1,854,629	1,854,629
Deferred revenue	1,212,561	1,212,561
Total current liabilities	34,778,365	20,436,854
Long-term debt	178,322	2,233,803
Capital lease obligations	42,811	320,737
Warrant liability	3,855,052
Deferred revenue	4,547,104	5,153,384
Other liabilities	912,467	761,334
Total liabilities	44,314,121	28,906,112
Stockholders' equity (deficit):
Series A preferred stock, par value $0.01 per share: 10,000,000 shares authorized, no shares issued and outstanding
Common stock, par value $0.01 per share; 200,000,000 shares authorized; 24,099,951 and 22,802,778 shares issued and outstanding at March 31, 2017 and September 30, 2016, respectively	241,000	228,028
Additional paid-in capital	147,442,335	141,965,342
Accumulated deficit	(174,537,146)	(147,393,548)
Total stockholders' deficit	(26,853,811)	(5,200,178)
Total liabilities and stockholders' equity (deficit)	$ 17,460,310	$ 23,705,934

Consolidated Balance Sheets (u3

Consolidated Balance Sheets (unaudited) (Parentheticals) - $ / shares	Mar. 31, 2017	Sep. 30, 2016
Statement of Financial Position [Abstract]
Preferred stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	24,099,951	22,802,778
Common stock, shares outstanding	24,099,951	22,802,778

Consolidated Statements of Oper

Consolidated Statements of Operations (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Collaboration revenues	$ 303,141	$ 994,894	$ 606,281	$ 1,989,788
Operating expenses:
Research and development	4,198,775	4,138,277	17,511,081	16,872,253
General and administrative	4,045,141	(189,438)	8,934,001	4,484,717
Operating expenses, total	8,243,916	3,948,839	26,445,082	21,356,970
Loss from operations	(7,940,775)	(2,953,945)	(25,838,801)	(19,367,182)
Interest expense, net	1,139,903	537,935	1,526,616	936,910
Change in fair value of warrant liability	(1,035,902)		(225,819)
Loss before income taxes	(8,044,776)	(3,491,880)	(27,139,598)	(20,304,092)
Income tax expense		50,500	4,000	102,500
Net loss	(8,044,776)	(3,542,380)	(27,143,598)	(20,406,592)
Accretion of redeemable preferred stock and noncontrolling interests		(1,030,414)		(1,969,953)
Net loss attributable to common stockholders	$ (8,044,776)	$ (4,572,794)	$ (27,143,598)	$ (22,376,545)
Per share information:
Net loss per share of common stock, basic (in dollars per share)	$ (0.34)	$ (0.32)	$ (1.16)	$ (1.64)
Net loss per share of common stock, diluted (in dollars per share)	$ (0.38)	$ (0.32)	$ (1.16)	$ (1.64)
Weighted average shares outstanding, basic (in shares)	23,723,551	14,155,081	23,457,361	13,605,331
Weighted average shares outstanding, diluted (in shares)	23,801,223	14,155,081	23,496,197	13,605,331

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Deficit) (unaudited) - 6 months ended Mar. 31, 2017 - USD ($)	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Balance at Sep. 30, 2016	$ 228,028	$ 141,965,342	$ (147,393,548)	$ (5,200,178)
Balance (in shares) at Sep. 30, 2016	22,802,778
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from exercise of common stock warrants	$ 4,400	118,601		123,001
Proceeds from exercise of common stock warrants (in shares)	440,027
Issuance of vested restricted stock units	$ 4,840	(4,840)
Issuance of vested restricted stock units (in shares)	483,913
Issuance of common stock in connection with equity facility	$ 1,154	(1,154)
Issuance of common stock in connection with equity facility (in shares)	115,416
Sale of common stock, net of issuance costs	$ 2,578	572,943		575,521
Sale of common stock, net of issuance costs (in shares)	257,817
Stock-based compensation expense		4,791,443		4,791,443
Net loss			(27,143,598)	(27,143,598)
Balance at Mar. 31, 2017	$ 241,000	$ 147,442,335	$ (174,537,146)	$ (26,853,811)
Balance (in shares) at Mar. 31, 2017	24,099,951

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($)	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
OPERATING ACTIVITIES
Net loss	$ (27,143,598)	$ (20,406,592)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,349,930	1,192,074
Non-cash interest expense	977,693	6,090
Stock-based compensation	4,791,443	(1,956,455)
Change in fair value of warrant liability	(225,819)
Loss on disposal of fixed assets		13,647
Changes in operating assets and liabilities:
Accounts receivable		(484,857)
Prepaid expenses and other current assets	2,552,975	1,080,342
Other assets	33,550	27,347
Accounts payable	6,973,453	1,878,794
Accrued expenses	1,193,392	156,677
Income taxes payable		100,000
Deferred revenue	(606,280)	(989,788)
Other liabilities	151,133	312,227
Net cash used in operating activities	(9,952,128)	(19,070,494)
INVESTING ACTIVITIES
Purchase of property and equipment	(191,877)	(317,293)
Net cash used in investing activities	(191,877)	(317,293)
FINANCING ACTIVITIES
Proceeds from the sale of common stock, net of offering costs	679,789	16,137,913
Payment of debt issuance costs	(40,000)
Proceeds from subscriptions receivable		4,280,149
Proceeds from exercise of common stock warrants	123,001
Proceeds from the sale of senior secured notes and detachable warrants	10,000,000
Payments of capital leases obligations	(477,299)	(443,326)
Repayment of debt	(2,628,410)	(364,348)
Payment of deferred offering costs		(200,000)
Repayment of stockholder notes		(6,560,795)
Change in restricted cash	216,086	(1,110)
Proceeds from related party receivable		783,374
Deconsolidation of Sonnet Biotherapeutics, Inc.		(401,091)
Payment of employee tax witholdings related to the vesting of restricted stock		(71,760)
Net cash provided by financing activities	7,873,167	13,159,006
Net decrease in cash	(2,270,838)	(6,228,781)
Cash at beginning of period	2,351,887	9,070,975
Cash at end of period	81,049	2,842,194
Supplemental disclosure of cash flow information
Cash paid for interest	418,496	794,663
Cash paid for income taxes		2,500
Supplemental schedule of noncash investing activities:
Purchases of property and equipment in accounts payable and accrued expenses	79,236	635,341
Supplemental schedule of noncash financing activities:
Accretion of redeemable common stock		1,969,953
Issuance of common and Series A preferred stock to redeemable preferred stockholders and noncontrolling interests upon reincorporation		(11,894,638)
Reclassification of equity classified stock-based compensation		(15,118,584)
Issuance of capital lease obligations in connection with purchase of property and equipment	62,230	78,500
Offering costs and common stock issuance costs in accounts payable and accrued expenses	$ (288,725)	$ (1,111,845)

Organization and Description of

Organization and Description of Business	6 Months Ended
	Mar. 31, 2017
Organization And Description Of Business [Abstract]
Organization and Description of Business	1. Organization and Description of Business Oncobiologics, Inc. (“Oncobiologics” or the “Company”) was incorporated in New Jersey on January 5, 2010 and started operations in July 2011. In October 2015, the Company reincorporated in Delaware through the merger with and into Oncobiologics, Inc., a newly formed Delaware corporation, with the Delaware corporation surviving the merger. Oncobiologics is a clinical-stage biopharmaceutical company focused on identifying, developing, manufacturing and commercializing complex biosimilar therapeutics in the disease areas of immunology and oncology. The Company has established fully integrated in-house development and manufacturing capabilities that address the numerous complex technical and regulatory challenges in developing and commercializing mAb biosimilars. Since inception, the Company has advanced two product candidates into clinical trials: a biosimilar to adalimumab (Humira®) and a biosimilar to bevacizumab (Avastin®), both of which are being prepared to move into Phase 3 clinical trials. Additionally, the Company has six preclinical biosimilar product candidates under active development. In May 2016, the Company completed the initial public offering (“IPO”) of its securities by offering 5,833,334 units. Each unit consisted of one share of the Company’s common stock, one-half of a Series A warrant and one-half of a Series B warrant. Each whole Series A warrant entitles the holder to purchase one share of common stock at an initial exercise price of $6.60, subject to adjustment. Each whole Series B warrant entitles the holder to purchase one share of common stock at an initial exercise price of $8.50, subject to adjustment. The IPO price was $6.00 per unit. In addition, the Company also completed a concurrent private placement of an additional 833,332 shares of its common stock, 416,666 Series A warrants and 416,666 Series B warrants, for gross proceeds of approximately $5.0 million. On May 13, 2016, the units began trading on the NASDAQ Global Market. The units separated in accordance with their terms and ceased trading, and on June 13, 2016, the component securities (common stock, Series A warrants and Series B warrants) began trading on the NASDAQ Global Market. As a result of the IPO and the concurrent private placement, the Company received approximately $33.8 million in net proceeds, after deducting discounts and commissions of approximately $2.9 million and offering expenses of approximately $3.3 million payable by the Company.

Liquidity

Liquidity	6 Months Ended
	Mar. 31, 2017
Liquidity [Abstract]
Liquidity	2. Liquidity The Company has incurred substantial losses and negative cash flows from operations since its inception and has an accumulated deficit of $174.5 million as of March 31, 2017. The Company has substantial indebtedness that includes $10.0 million of senior secured notes due in December 2017 and $4.6 million in notes payable to stockholders that are payable on demand. There can be no assurance that the holders of the stockholder notes will not exercise their right to demand repayment. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying unaudited interim consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The unaudited interim consolidated financial statements do not include any adjustments related to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty. The Company anticipates incurring additional losses until such time, if ever, that it can generate significant sales of its products currently in development. Management believes that the Company’s existing cash of $0.1 million as of March 31, 2017 and the $3.5 million of cash proceeds in April 2017 from the issuance of additional senior secured notes and warrants will be sufficient to fund its operations through May 2017. Substantial additional financing will be needed by the Company to fund its operations and to commercially develop its product candidates. Management is currently evaluating different strategies to obtain the required funding for future operations. These strategies may include, but are not limited to: payments from current and potential new strategic research and development, licensing and/or marketing arrangements with pharmaceutical companies, private placements of equity and/or debt, public offerings of equity and/or debt securities, generating revenue by using the capabilities of its BioSymphony platform to provide development and manufacturing services for a fee to other pharmaceutical companies developing mAbs, the potential disposition of some of its assets, and exploring additional cost reduction opportunities. There can be no assurance that these future funding efforts will be successful, and if not successful, the Company may be required to explore all other alternatives. The Company’s future operations are highly dependent on a combination of factors, including (i) the timely and successful completion of additional financing discussed above; (ii) the Company’s ability to complete revenue-generating partnerships with pharmaceutical companies; (iii) the success of its research and development; (iv) the development of competitive therapies by other biotechnology and pharmaceutical companies, and, ultimately; (v) regulatory approval and market acceptance of the Company’s proposed future products.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	3. Basis of Presentation and Summary of Significant Accounting Policies Basis of presentation The accompanying unaudited interim consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Any reference in these notes to applicable guidance is meant to refer to GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). In the opinion of management, the accompanying unaudited interim consolidated financial statements include all normal and recurring adjustments (which consist primarily of accruals, estimates and assumptions that impact the financial statements) considered necessary to present fairly the Company’s financial position as of March 31, 2017 and its results of operations for the three and six months ended March 31, 2017 and 2016 and cash flows for the six months ended March 31, 2017 and 2016. Operating results for the six months ended March 31, 2017 are not necessarily indicative of the results that may be expected for the full year ending September 30, 2017. The unaudited interim consolidated financial statements, presented herein, do not contain the required disclosures under GAAP for annual consolidated financial statements. The accompanying unaudited interim consolidated financial statements should be read in conjunction with the annual audited consolidated financial statements and related notes as of and for the year ended September 30, 2016 included in the Company’s Annual Report on Form 10-K, as amended to date, filed with the Securities and Exchange Commission (”SEC”), on December 29, 2016. Use of estimates The preparation of the unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Due to the uncertainty of factors surrounding the estimates or judgments used in the preparation of the unaudited interim consolidated financial statements, actual results may materially vary from these estimates. Estimates and assumptions are periodically reviewed and the effects of revisions are reflected in the unaudited interim consolidated financial statements in the period they are determined to be necessary. Income taxes The Company recorded income tax expense of $0 and $50,500 for the three months ended March 31, 2017 and 2016, respectively, and $4,000 and $102,500 for the six months ended March 31, 2017 and 2016, respectively, which is primarily attributable to state and foreign withholding taxes in connection with the Company’s collaboration and licensing agreements. Net loss per share Basic net loss per common share is determined by dividing net loss applicable to common shareholders by the weighted average common shares outstanding during the period. For purposes of calculating diluted loss per common share, the denominator includes both the weighted average common shares outstanding and the number of common stock equivalents if the inclusion of such common stock equivalents would be dilutive. Dilutive common stock equivalents potentially include warrants, stock options and non-vested restricted stock awards using the treasury stock method. The diluted loss per common share calculation is further affected by an add-back of change in fair value of warrant liability to the numerator under the assumption that the change in fair value of warrant liability would not have been incurred if the warrants had been converted into common stock. The following table sets forth the computation of basic earnings per share and diluted earnings per share: Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Basic Earnings Per Share Net loss $ (8,044,776 ) $ (4,572,794 ) $ (27,143,598 ) $ (22,376,545 ) Common stock outstanding (weighted average) 23,723,551 14,155,081 23,457,361 13,605,331 Basic net loss per share $ (0.34 ) $ (0.32 ) $ (1.16 ) $ (1.64 ) Diluted Earnings Per Share Net loss (8,044,776 ) (4,572,794 ) (27,143,598 ) (22,376,545 ) Add change in fair value of warrant liability (1,035,902 ) - (225,819 ) - Diluted net loss (9,080,678 ) (4,572,794 ) (27,369,417 ) (22,376,545 ) Common stock outstanding (weighted average) 23,723,551 14,155,081 23,457,361 13,605,331 Add shares from dilutive warrants 77,672 - 38,836 - Common stock equivalents 23,801,223 14,155,081 23,496,197 13,605,331 Diluted net loss per share $ (0.38 ) $ (0.32 ) $ (1.16 ) $ (1.64 ) The following potentially dilutive securities have been excluded from the computation of diluted weighted-average shares outstanding as of March 31, 2017 and 2016, as they would be antidilutive: March 31, 2017 2016 Series A preferred stock - 984,899 Performance-based stock units 241,573 247,887 Restricted stock units 1,200,529 1,066,039 Convertible stockholder note - 96,618 Common stock warrants 7,786,573 - Amounts in the table above reflect the common stock equivalents of the noted instruments. Recently issued and adopted accounting pronouncements In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern In May 2014, the FASB issued ASU, No. 2014-09, Revenue from Contracts with Customers Contracts with customers Significant judgments and changes in judgments Certain assets In July 2015, the FASB delayed the effective date of this guidance. As a result, this guidance will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact that this guidance will have on its consolidated results of operations, financial position and cash flows. In February 2016, the FASB issued ASU 2016-02, Leases In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. Fair Value Measurements Certain assets and liabilities are carried at fair value under GAAP. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable: ■ Level 1 — Quoted prices in active markets for identical assets or liabilities. ■ Level 2 — Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. ■ Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques. The asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis: March 31, 2017 (Level 1) (Level 2) (Level 3) Liabilities Warrant liability $ - $ - $ 3,855,052 The table presented below is a summary of changes in the fair value of the Company’s Level 3 valuation for the warrant liability for the six months ended March 31, 2017: Balance at October 1, 2016 $ - Issuance of warrants 4,080,871 Change in fair value (225,819 ) Balance at March 31, 2017 $ 3,855,052 The warrants issued in connection with the senior secured notes are classified as liabilities on the accompanying consolidated balance sheet as the warrants include cash settlement features at the option of the holders under certain circumstances. The warrant liability is revalued each reporting period with the change in fair value recorded in the accompanying consolidated statements of operations until the warrants are exercised or expire. The fair value of the warrant liability is estimated using the Black-Scholes option pricing model using the following assumptions: March 31, 2017 Risk-free interest rate 1.93% Remaining contractual life of warrant 4.78 years Expected volatility 84% Annual dividend yield 0% Fair value of common stock $2.68 per share

Property and Equipment

Property and Equipment	6 Months Ended
	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Property and Equipment	5. Property and Equipment Property and equipment, net, consists of: March 31, September 30, 2017 2016 Laboratory equipment $ 11,574,475 $ 11,452,858 Leasehold improvements 10,032,640 10,031,739 Computer software and hardware 471,152 421,206 Construction in progress 1,010,882 1,014,690 23,089,149 22,920,493 Less: accumulated depreciation and amortization (7,302,771 ) (5,961,940 ) $ 15,786,378 $ 16,958,553 Depreciation and amortization expense was $680,149 and $598,097 for the three months ended March 31, 2017 and 2016, respectively, and $1,349,930 and $1,192,074 for the six months ended March 31, 2017 and 2016, respectively. At March 31, 2017 and September 30, 2016, $3,692,913 and $3,630,683, respectively, represents laboratory equipment under capital leases. The term of the leases are between 22 and 36 months and qualify as capital leases. The leases bear interest between 5.0% and 19.4%. At March 31, 2017 and September 30, 2016, $894,890 and $732,002, respectively, of accumulated amortization related to this leased equipment has been recognized.

Accrued Expenses

Accrued Expenses	6 Months Ended
	Mar. 31, 2017
Accrued Expenses [Abstract]
Accrued Expenses	6. Accrued Expenses Accrued expenses consists of: March 31, September 30, 2017 2016 Compensation $ 4,445,041 $ 3,884,386 Research and development 1,717,383 1,343,910 Interest payable 540,106 234,754 Deferred offering costs - 26,028 Professional fees 397,871 486,705 Director fees 219,375 73,125 Other accrued expenses 99,825 73,034 $ 7,419,601 $ 6,121,942

Senior Secured Notes

Senior Secured Notes	6 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Senior Secured Notes	7. Senior Secured Notes March 31, 2017 Senior secured notes $ 10,000,000 Unamortized debt discount (3,388,859 ) $ 6,611,141 In October, November and December 2016, the Company issued $1.85 million aggregate principal amount of unsecured bridge notes to accredited investors. These unsecured notes bore interest at a rate of 15% per year and had a one-year maturity date from the date of issuance. These unsecured notes were exchanged for senior secured promissory notes in December 2016 as described below. On December 22, 2016, the Company entered into a Note and Warrant Purchase Agreement (the “NWPA”) with accredited investors providing for the issuance and sale of up to $10.0 million of senior secured promissory notes (the “Notes”), which bear interest at a rate of 5% per year and mature December 22, 2017 and warrants (the “Warrants”) to acquire an aggregate 2.3 million shares of the Company’s common stock at an exercise price of $3.00 per share, which have a five-year term. The Company closed the initial sale and purchase of the Notes and Warrants on December 22, 2016, issuing $8.35 million aggregate principal amount of Notes and Warrants to acquire up to 1,920,500 shares of the Company’s common stock in exchange for $6.5 million and an aggregate of $1.85 million of existing unsecured bridge notes issued by the Company in October, November and December 2016. The proceeds were first allocated to the warrant liability based on their initial fair value of $3.3 million with an offsetting amount recorded as a debt discount. In addition, the Company incurred $40,000 of debt issuance costs that have been recorded as a debt discount. The debt discount is being amortized into interest expense over the term of the Notes. The Company used $2.4 million of the proceeds from the sale of the Notes to pay off its remaining senior secured bank loans, and will use the remainder for working capital purposes. In January 2017, the Company issued the remaining Notes and Warrants for $1.65 million. The proceeds were first allocated to the warrant liability based on their initial fair value of $0.8 million with an offsetting amount recorded as a debt discount. Under the NWPA, the Company agreed to customary negative covenants restricting its ability to repay indebtedness to officers, pay dividends to stockholders, repay or incur other indebtedness other than as permitted, grant or suffer to exist a security interest in any of the Company’s assets, other than as permitted, or enter into any transactions with affiliates. In addition to the negative covenants in the NWPA, the Notes include customary events of default. In connection with the closing of the initial sale of the Notes and Warrants, the Company entered into a Security Agreement and an Intellectual Property Security Agreement, each dated December 22, 2016, granting the holders of the Notes a security interest in all of its assets. Interest expense on the Notes for the three and six months ended March 31, 2017 was $958,037 and $1,047,929, respectively. On April 13, 2017, the Company entered into the First Amendment to the NWPA (the “Amendment”) with the required holders of its Notes named therein, to amend certain terms of the NWPA. The primary purpose of the Amendment was to increase the amount of Notes that may be issued pursuant to the NWPA from $10.0 million to $15.0 million, permit the issuance of additional Warrants to acquire an aggregate 1,665,000 shares of its common stock, as well as increase the amount of time for the Company to issue additional Notes and Warrants in additional closings under the NWPA without approval of the holders of the Notes from 90 days to 180 days. In connection with the Amendment, on April 13, 2017, the Company issued an additional $3.5 million of Notes and Warrants to acquire an aggregate 1,165,500 shares of its common stock in exchange for $3.5 million. Under the NWPA as amended by the Amendment, the Company may now issue up to $1.5 million of additional Notes and Warrants to acquire up to an additional 499,500 shares of its common stock in additional closings over 180 days from the original date of the NWPA without approval of the holders of the Notes.

Stockholders' Equity (Deficit)

Stockholders' Equity (Deficit)	6 Months Ended
	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Stockholders' Equity (Deficit)	8. Stockholders’ Equity (Deficit) Lincoln Park Capital, LLC transaction On March 8, 2017, the Company entered into a Purchase Agreement and a Registration Rights Agreement with an accredited investor, Lincoln Park Capital, LLC (“Lincoln Park”), providing for the purchase of the Company’s common stock over the 30-month term of the Purchase Agreement. Under the terms and subject to the conditions of the Purchase Agreement, the Company has the right, but not the obligation, to sell to Lincoln Park, and Lincoln Park is obligated to purchase up to $15.4 million of shares of the Company’s common stock. As contemplated by the Purchase Agreement, and so long as the closing price of the Company’s common stock exceeds $1.50 per share, then the Company may direct Lincoln Park, at its sole discretion to purchase up to 30,000 shares of its common stock on any business day. The price per share for such purchases will be equal to the lower of: (i) the lowest sale price on the applicable purchase date and (ii) the arithmetic average of the three (3) lowest closing sale prices for the Company’s common stock during the ten (10) consecutive business days ending on the business day immediately preceding such purchase date (in each case, to be appropriately adjusted for any reorganization, recapitalization, non-cash dividend, stock split or other similar transaction that occurs on or after the date of the purchase agreement). The maximum amount of shares subject to any single regular purchase increases as the Company’s share price increases, subject to a maximum of $1.0 million. In addition to regular purchases, the Company may also direct Lincoln Park to purchase other amounts as accelerated purchases or as additional purchases if the closing sale price of the common stock exceeds certain threshold prices as set forth in the purchase agreement. In all instances, the Company may not sell shares of its common stock to Lincoln Park under the purchase agreement if it would result in Lincoln Park beneficially owning more than 4.99% of its common stock. There are no trading volume requirements or restrictions under the purchase agreement nor any upper limits on the price per share that Lincoln Park must pay for shares of common stock. The Purchase Agreement and the Registration Rights Agreement contain customary representations, warranties, agreements and conditions to completing future sale transactions, indemnification rights and obligations of the parties. The Company has the right to terminate the purchase agreement at any time, at no cost or penalty. During any “event of default” under the Purchase Agreement, all of which are outside of Lincoln Park’s control, Lincoln Park does not have the right to terminate the Purchase Agreement; however, the Company may not initiate any regular or other purchase of shares by Lincoln Park, until such event of default is cured. In addition, in the event of bankruptcy proceedings by or against the Company, the Purchase Agreement will automatically terminate. During the three months ended March 31, 2017, the Company sold 257,817 shares of common stock to Lincoln Park for $693,061 and incurred $117,540 of issuance costs. In addition, the Company issued 115,416 shares of common stock to Lincoln Park as commitment shares pursuant to the Purchase Agreement. The Company may issue up to an additional 110,995 commitment shares to Lincoln Park in connection with additional purchases. In April and May 2017, Lincoln Park purchased an additional 300,000 shares of the Company’s common stock for $659,790 of proceeds. Common stock warrants As of March 31, 2017, the Company had the following warrants outstanding to acquire shares of its common stock: Outstanding Exercise Expiration date Series A warrants 3,333,333 $ 6.60 February 18, 2018 Series B warrants 3,333,333 $ 8.50 May 18, 2018 Common stock warrants issued with IPO 1,119,907 $ 0.01 November 11, 2019 Common stock warrants issued with senior secured notes 2,260,334 $ 3.00 December 22, 2021 10,046,907 During the six months ended March 31, 2017, warrants to purchase 400,361 and 39,666 shares with exercise prices of $0.01 and $3.00 per share, respectively, were exercised.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	9. Stock-Based Compensation 2011 Equity Incentive Plan The Company’s 2011 Equity Compensation Plan (the “2011 Plan”) provided for the Company to sell or issue restricted common stock, restricted stock units (“RSUs”), performance-based awards, cash-based awards or to grant stock options for the purchase of common stock to officers, employees, consultants and directors of the Company. The 2011 Plan was administered by the board of directors or, at the discretion of the board of directors, by a committee of the board. The number of shares of common stock reserved for issuance under the 2011 Plan is 1,159,420. As of March 31, 2017, performance-based stock unit awards (“PSUs”) representing 241,573 shares of the Company’s common stock were outstanding under the 2011 Plan. In light of the December 2015 adoption of the 2015 Equity Incentive Plan, no future awards under the 2011 Plan will be granted. 2015 Equity Incentive Plan In December 2015, the Company adopted the 2015 Equity Incentive Plan (the “2015 Plan”). The 2015 Plan provides for the grant of stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance stock awards and other forms of equity compensation to Company employees, directors and consultants. The maximum number of shares of common stock that may be issued under the 2015 Plan is 2,638,101 shares. As of March 31, 2017, RSUs representing 1,200,529 shares of the Company’s common stock were outstanding under the 2015 Plan and 953,659 shares remained available for grant under the 2015 Plan. The Company recorded stock-based compensation expense in the following expense categories of its statements of operations for the three and six months ended March 31, 2017 and 2016: Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Research and development $ 431,706 $ (3,281,214 ) $ 817,815 $ (1,924,806 ) General and administrative 1,895,685 (1,165,275 ) 3,973,628 (31,649 ) $ 2,327,391 $ (4,446,489 ) 4,791,443 (1,956,455 ) Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Equity-classified compensation $ 2,327,391 $ (4,446,489 ) 4,791,443 (4,348,317 ) Liability-classified compensation - - - 2,391,862 $ 2,327,391 $ (4,446,489 ) 4,791,443 (1,956,455 ) Performance-based stock units The Company has issued PSUs, which generally have a ten year life from the date of grant and vest 50% after the third anniversary from issuance and the remaining 50% on the fourth anniversary. The PSUs are exercisable upon the earlier of (i) a change in control, (ii) consummation of an initial public offering, or (iii) a corporate valuation in excess of $400 million. Upon exercise, the PSU holder receives common stock or cash at the Company’s discretion. The following table summarizes the PSU activity for the six months ended March 31, 2017: Number Base of Price PSUs Per PSU Balance at October 1, 2016 247,309 $ 6.33 Forfeitures (5,736 ) 7.68 Balance at March 31, 2017 241,573 $ 6.29 As of March 31, 2017, there was $420,252 of unamortized expense that will be recognized over a weighted-average period of 1.25 years. Restricted stock units The following table summarizes the activity related to RSUs during the six months ended March 31, 2017: Weighted Number Average of Grant Date RSUs Fair Value Balance at October 1, 2016 1,094,351 $ 28.61 Granted 615,000 2.11 Vested and settled (483,913 ) 29.05 Forfeitures (24,909 ) 2.65 Balance at March 31, 2017 1,200,529 $ 15.40 The Company has granted RSUs that generally vest over a period of two to four years from the date of grant. In addition, vesting of the RSUs was also dependent upon the closing of the Company’s IPO, which is a performance condition that is outside the Company’s control. Therefore, the Company did not recognize any stock-based compensation until the consummation of the IPO in May 2016. As of March 31, 2017, there was $9,094,284 of unamortized expense that will be recognized over a weighted-average period of 1.24 years.

Basis of Presentation and Sum16

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation The accompanying unaudited interim consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Any reference in these notes to applicable guidance is meant to refer to GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). In the opinion of management, the accompanying unaudited interim consolidated financial statements include all normal and recurring adjustments (which consist primarily of accruals, estimates and assumptions that impact the financial statements) considered necessary to present fairly the Company’s financial position as of March 31, 2017 and its results of operations for the three and six months ended March 31, 2017 and 2016 and cash flows for the six months ended March 31, 2017 and 2016. Operating results for the six months ended March 31, 2017 are not necessarily indicative of the results that may be expected for the full year ending September 30, 2017. The unaudited interim consolidated financial statements, presented herein, do not contain the required disclosures under GAAP for annual consolidated financial statements. The accompanying unaudited interim consolidated financial statements should be read in conjunction with the annual audited consolidated financial statements and related notes as of and for the year ended September 30, 2016 included in the Company’s Annual Report on Form 10-K, as amended to date, filed with the Securities and Exchange Commission (”SEC”), on December 29, 2016.
Use of estimates	Use of estimates The preparation of the unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Due to the uncertainty of factors surrounding the estimates or judgments used in the preparation of the unaudited interim consolidated financial statements, actual results may materially vary from these estimates. Estimates and assumptions are periodically reviewed and the effects of revisions are reflected in the unaudited interim consolidated financial statements in the period they are determined to be necessary.
Income taxes	Income taxes The Company recorded income tax expense of $0 and $50,500 for the three months ended March 31, 2017 and 2016, respectively, and $4,000 and $102,500 for the six months ended March 31, 2017 and 2016, respectively, which is primarily attributable to state and foreign withholding taxes in connection with the Company’s collaboration and licensing agreements.
Net loss per share	Net loss per share Basic net loss per common share is determined by dividing net loss applicable to common shareholders by the weighted average common shares outstanding during the period. For purposes of calculating diluted loss per common share, the denominator includes both the weighted average common shares outstanding and the number of common stock equivalents if the inclusion of such common stock equivalents would be dilutive. Dilutive common stock equivalents potentially include warrants, stock options and non-vested restricted stock awards using the treasury stock method. The diluted loss per common share calculation is further affected by an add-back of change in fair value of warrant liability to the numerator under the assumption that the change in fair value of warrant liability would not have been incurred if the warrants had been converted into common stock. The following table sets forth the computation of basic earnings per share and diluted earnings per share: Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Basic Earnings Per Share Net loss $ (8,044,776 ) $ (4,572,794 ) $ (27,143,598 ) $ (22,376,545 ) Common stock outstanding (weighted average) 23,723,551 14,155,081 23,457,361 13,605,331 Basic net loss per share $ (0.34 ) $ (0.32 ) $ (1.16 ) $ (1.64 ) Diluted Earnings Per Share Net loss (8,044,776 ) (4,572,794 ) (27,143,598 ) (22,376,545 ) Add change in fair value of warrant liability (1,035,902 ) - (225,819 ) - Diluted net loss (9,080,678 ) (4,572,794 ) (27,369,417 ) (22,376,545 ) Common stock outstanding (weighted average) 23,723,551 14,155,081 23,457,361 13,605,331 Add shares from dilutive warrants 77,672 - 38,836 - Common stock equivalents 23,801,223 14,155,081 23,496,197 13,605,331 Diluted net loss per share $ (0.38 ) $ (0.32 ) $ (1.16 ) $ (1.64 ) The following potentially dilutive securities have been excluded from the computation of diluted weighted-average shares outstanding as of March 31, 2017 and 2016, as they would be antidilutive: March 31, 2017 2016 Series A preferred stock - 984,899 Performance-based stock units 241,573 247,887 Restricted stock units 1,200,529 1,066,039 Convertible stockholder note - 96,618 Common stock warrants 7,786,573 - Amounts in the table above reflect the common stock equivalents of the noted instruments.
Recently Issued and Adopted Accounting Pronouncements	Recently issued and adopted accounting pronouncements In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern In May 2014, the FASB issued ASU, No. 2014-09, Revenue from Contracts with Customers Contracts with customers Significant judgments and changes in judgments Certain assets In July 2015, the FASB delayed the effective date of this guidance. As a result, this guidance will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact that this guidance will have on its consolidated results of operations, financial position and cash flows. In February 2016, the FASB issued ASU 2016-02, Leases In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting

Basis of Presentation and Sum17

Basis of Presentation and Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Schedule of computation of basic earnings per share and diluted earnings per share	Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Basic Earnings Per Share Net loss $ (8,044,776 ) $ (4,572,794 ) $ (27,143,598 ) $ (22,376,545 ) Common stock outstanding (weighted average) 23,723,551 14,155,081 23,457,361 13,605,331 Basic net loss per share $ (0.34 ) $ (0.32 ) $ (1.16 ) $ (1.64 ) Diluted Earnings Per Share Net loss (8,044,776 ) (4,572,794 ) (27,143,598 ) (22,376,545 ) Add change in fair value of warrant liability (1,035,902 ) - (225,819 ) - Diluted net loss (9,080,678 ) (4,572,794 ) (27,369,417 ) (22,376,545 ) Common stock outstanding (weighted average) 23,723,551 14,155,081 23,457,361 13,605,331 Add shares from dilutive warrants 77,672 - 38,836 - Common stock equivalents 23,801,223 14,155,081 23,496,197 13,605,331 Diluted net loss per share $ (0.38 ) $ (0.32 ) $ (1.16 ) $ (1.64 )
Schedule of dilutive securities excluded from the computation weighted-average shares	March 31, 2017 2016 Series A preferred stock - 984,899 Performance-based stock units 241,573 247,887 Restricted stock units 1,200,529 1,066,039 Convertible stockholder note - 96,618 Common stock warrants 7,786,573 -

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value on a recurring basis	March 31, 2017 (Level 1) (Level 2) (Level 3) Liabilities Warrant liability $ - $ - $ 3,855,052
Summary of changes in the fair value of the Company's Level 3 valuation for the warrant liability	Balance at October 1, 2016 $ - Issuance of warrants 4,080,871 Change in fair value (225,819 ) Balance at March 31, 2017 $ 3,855,052
Schedule of fair value of the performance-based stock units (PSUs)	March 31, 2017 Risk-free interest rate 1.93% Remaining contractual life of warrant 4.78 years Expected volatility 84% Annual dividend yield 0% Fair value of common stock $2.68 per share

Property and Equipment (Tables)

Property and Equipment (Tables)	6 Months Ended
	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Schedule of property and equipment	March 31, September 30, 2017 2016 Laboratory equipment $ 11,574,475 $ 11,452,858 Leasehold improvements 10,032,640 10,031,739 Computer software and hardware 471,152 421,206 Construction in progress 1,010,882 1,014,690 23,089,149 22,920,493 Less: accumulated depreciation and amortization (7,302,771 ) (5,961,940 ) $ 15,786,378 $ 16,958,553

Accrued Expenses (Tables)

Accrued Expenses (Tables)	6 Months Ended
	Mar. 31, 2017
Accrued Expenses [Abstract]
Schedule of accrued expenses	March 31, September 30, 2017 2016 Compensation $ 4,445,041 $ 3,884,386 Research and development 1,717,383 1,343,910 Interest payable 540,106 234,754 Deferred offering costs - 26,028 Professional fees 397,871 486,705 Director fees 219,375 73,125 Other accrued expenses 99,825 73,034 $ 7,419,601 $ 6,121,942

Senior Secured Notes (Tables)

Senior Secured Notes (Tables)	6 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Schedule of senior secured note	March 31, 2017 Senior secured notes $ 10,000,000 Unamortized debt discount (3,388,859 ) $ 6,611,141

Stockholders' Equity (Deficit)

Stockholders' Equity (Deficit) (Tables)	6 Months Ended
	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Schedule of warrants outstanding	Outstanding Exercise Expiration date Series A warrants 3,333,333 $ 6.60 February 18, 2018 Series B warrants 3,333,333 $ 8.50 May 18, 2018 Common stock warrants issued with IPO 1,119,907 $ 0.01 November 11, 2019 Common stock warrants issued with senior secured notes 2,260,334 $ 3.00 December 22, 2021 10,046,907

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of stock-based compensation expense	Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Research and development $ 431,706 $ (3,281,214 ) $ 817,815 $ (1,924,806 ) General and administrative 1,895,685 (1,165,275 ) 3,973,628 (31,649 ) $ 2,327,391 $ (4,446,489 ) 4,791,443 (1,956,455 ) Three months ended March 31, Six months ended March 31, 2017 2016 2017 2016 Equity-classified compensation $ 2,327,391 $ (4,446,489 ) 4,791,443 (4,348,317 ) Liability-classified compensation - - - 2,391,862 $ 2,327,391 $ (4,446,489 ) 4,791,443 (1,956,455 )
Schedule of performance-based stock units activity	Number Base of Price PSUs Per PSU Balance at October 1, 2016 247,309 $ 6.33 Forfeitures (5,736 ) 7.68 Balance at March 31, 2017 241,573 $ 6.29
Schedule of restricted stock units activity	Weighted Number Average of Grant Date RSUs Fair Value Balance at October 1, 2016 1,094,351 $ 28.61 Granted 615,000 2.11 Vested and settled (483,913 ) 29.05 Forfeitures (24,909 ) 2.65 Balance at March 31, 2017 1,200,529 $ 15.40

Organization and Description 24

Organization and Description of Business (Detail Textuals) - USD ($) $ / shares in Units, $ in Millions	May 13, 2016	May 31, 2016	Mar. 31, 2017
Common stock repurchase note
Organization And Description Of Business [Line Items]
Number of unit issued			257,817
Series A warrant
Organization And Description Of Business [Line Items]
Exercise price per share			$ 6.60
Series B warrant
Organization And Description Of Business [Line Items]
Exercise price per share			$ 8.50
IPO
Organization And Description Of Business [Line Items]
Description of IPO unit		Each unit consisted of one share of the Company's common stock, one-half of a Series A warrant and one-half of a Series B warrant.
Number of unit issued		5,833,334
Initial public offering price per share		$ 6
Proceeds from sale of common stock units in connection with initial public offering and private placement	$ 33.8
Underwriting discounts and commissions	2.9
Estimated offering expenses	$ 3.3
IPO | Series A warrant
Organization And Description Of Business [Line Items]
Exercise price per share		6.60
IPO | Series B warrant
Organization And Description Of Business [Line Items]
Exercise price per share		$ 8.50
Private Placement
Organization And Description Of Business [Line Items]
Number of unit issued		833,332
Gross proceeds of private placement and warrants		$ 5
Private Placement | Series A warrant
Organization And Description Of Business [Line Items]
Number of unit issued		416,666
Private Placement | Series B warrant
Organization And Description Of Business [Line Items]
Number of unit issued		416,666

Liquidity (Detail Textuals)

Liquidity (Detail Textuals) - USD ($)	1 Months Ended		6 Months Ended
	Apr. 30, 2017	Jan. 31, 2017	Mar. 31, 2017	Sep. 30, 2016
Liquidity [Line Items]
Accumulated deficit			$ (174,537,146)	$ (147,393,548)
Aggregate indebtedness			10,000,000
Notes payable to stockholders			4,600,000
Proceeds from issuance of notes		$ 1,650,000	$ 10,000,000
Subsequent Event
Liquidity [Line Items]
Proceeds from issuance of notes	$ 3,500,000

Basis of Presentation and Sum26

Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Basic Earnings Per Share
Net loss	$ (8,044,776)	$ (4,572,794)	$ (27,143,598)	$ (22,376,545)
Common stock outstanding (weighted average)	23,723,551	14,155,081	23,457,361	13,605,331
Basic net loss per share	$ (0.34)	$ (0.32)	$ (1.16)	$ (1.64)
Diluted Earnings Per Share
Net loss	$ (8,044,776)	$ (4,572,794)	$ (27,143,598)	$ (22,376,545)
Add change in fair value of warrant liability	(1,035,902)		(225,819)
Diluted net loss	$ (9,080,678)	$ (4,572,794)	$ (27,369,417)	$ (22,376,545)
Common stock outstanding (weighted average)	23,723,551	14,155,081	23,457,361	13,605,331
Add shares from dilutive warrants	77,672		38,836
Common stock equivalents	23,801,223	14,155,081	23,496,197	13,605,331
Diluted net loss per share (in dollars per share)	$ (0.38)	$ (0.32)	$ (1.16)	$ (1.64)

Basis of Presentation and Sum27

Basis of Presentation and Summary of Significant Accounting Policies (Details 1) - shares	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Series A preferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		984,899
Performance-based stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	241,573	247,887
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,200,529	1,066,039
Convertible stockholder note
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		96,618
Common stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	7,786,573

Basis of Presentation and Sum28

Basis of Presentation and Summary of Significant Accounting Policies (Detail Textuals) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Accounting Policies [Abstract]
Income tax expense (benefit) attributable to foreign withholding taxes in connection with collaboration and licensing agreements	$ 0	$ 50,500	$ 4,000	$ 102,500

Fair Value Measurements (Detail

Fair Value Measurements (Details)	Mar. 31, 2017USD ($)
Liabilities
Warrant liability	$ 3,855,052
Fair value measurements recurring basis | Level 1
Liabilities
Warrant liability
Fair value measurements recurring basis | Level 2
Liabilities
Warrant liability
Fair value measurements recurring basis | Level 3
Liabilities
Warrant liability	$ 3,855,052

Fair Value Measurements (Deta30

Fair Value Measurements (Details 1) - Warrant	6 Months Ended
	Mar. 31, 2017USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at October 1, 2016
Issuance of warrants	4,080,871
Change in fair value	(225,819)
Balance at March 31, 2017	$ 3,855,052

Fair Value Measurements (Deta31

Fair Value Measurements (Details 2) - Warrant	6 Months Ended
	Mar. 31, 2017$ / shares
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Risk-free interest rate	1.93%
Remaining contractual life of warrant	4 years 9 months 11 days
Expected volatility	84.00%
Annual dividend yield	0.00%
Fair value of common stock	$ 2.68

Property and Equipment (Details

Property and Equipment (Details) - USD ($)	Mar. 31, 2017	Sep. 30, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 23,089,149	$ 22,920,493
Less: accumulated depreciation and amortization	(7,302,771)	(5,961,940)
Property and equipment, net	15,786,378	16,958,553
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,574,475	11,452,858
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,032,640	10,031,739
Computer software and hardware
Property, Plant and Equipment [Line Items]
Property and equipment, gross	471,152	421,206
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,010,882	$ 1,014,690

Property and Equipment (Detail

Property and Equipment (Detail Textuals) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Sep. 30, 2016
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 680,149	$ 598,097	$ 1,349,930	$ 1,192,074
Laboratory Equipment
Property, Plant and Equipment [Line Items]
Laboratory equipment under capital leases	3,692,913		3,692,913		$ 3,630,683
Accumulated depreciation related to leased equipment	$ 894,890		$ 894,890		$ 732,002
Laboratory Equipment | Minimum
Property, Plant and Equipment [Line Items]
Term of capital leases			22 months
Capital leases interest rate			5.00%
Laboratory Equipment | Maximum
Property, Plant and Equipment [Line Items]
Term of capital leases			36 months
Capital leases interest rate			1.94%

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($)	Mar. 31, 2017	Sep. 30, 2016
Accrued Liabilities, Current [Abstract]
Compensation	$ 4,445,041	$ 3,884,386
Research and development	1,717,383	1,343,910
Interest payable	540,106	234,754
Deferred offering costs		26,028
Professional fees	397,871	486,705
Director fees	219,375	73,125
Other accrued expenses	99,825	73,034
Accrued expenses	$ 7,419,601	$ 6,121,942

Senior Secured Notes (Details)

Senior Secured Notes (Details)	Mar. 31, 2017USD ($)
Debt Instrument [Line Items]
Senior secured notes	$ 6,611,141
Senior secured notes
Debt Instrument [Line Items]
Senior secured notes	10,000,000
Unamortized debt discount	(3,388,859)
Senior secured notes	$ 6,611,141

Senior Secured Notes (Detail Te

Senior Secured Notes (Detail Textuals) - USD ($)	Apr. 13, 2017	Apr. 30, 2017	Jan. 31, 2017	Dec. 22, 2016	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Debt Instrument [Line Items]
Aggregate principal amount of notes and warrants issued			$ 1,650,000
Repayment of senior secured bank loans							$ 2,628,410	$ 364,348
Initial fair value of warrant liability			$ 800,000
Interest expense on the notes					$ 958,037		1,047,929
Subsequent event
Debt Instrument [Line Items]
Aggregate principal amount of notes and warrants issued		$ 3,500,000
Bridge note
Debt Instrument [Line Items]
Unsecured bridge notes						$ 1,850,000
Interest rate						15.00%
Debt Instrument, term						1 year
Senior note
Debt Instrument [Line Items]
Interest rate				5.00%
Debt instrument, maturity date				Dec. 22, 2017
Warrants to acquire common stock				2,300,000
Exercise price per share				$ 3
Term of warrants				5 years
Aggregate principal amount of notes and warrants issued				$ 8,350,000
Maximum number of shares called by warrants				1,920,500
Proceeds from issuance of secured debt				$ 6,500,000
Repayment of senior secured bank loans							$ 2,400,000
Initial fair value of warrant liability				3,300,000
Debt issuance costs				40,000
Senior note | Subsequent event
Debt Instrument [Line Items]
Interest rate	5.00%
Warrants to acquire common stock	1,165,500
Aggregate principal amount of notes and warrants issued	$ 3,500,000
Maximum number of shares called by warrants	1,665,000
Senior note | Maximum
Debt Instrument [Line Items]
Senior secured promissory note				$ 10,000,000
Senior note | Maximum | Subsequent event
Debt Instrument [Line Items]
Senior secured promissory note	$ 15,000,000
Aggregate principal amount of notes and warrants issued	$ 1,500,000
Maximum number of shares called by warrants	499,500

Stockholders' Equity (Deficit37

Stockholders' Equity (Deficit) (Details)	6 Months Ended
	Mar. 31, 2017$ / sharesshares
Class of Warrant or Right [Line Items]
Outstanding	10,046,907
Series A warrant
Class of Warrant or Right [Line Items]
Outstanding	3,333,333
Exercise price per share | $ / shares	$ 6.60
Expiration date	Feb. 18, 2018
Series B warrant
Class of Warrant or Right [Line Items]
Outstanding	3,333,333
Exercise price per share | $ / shares	$ 8.50
Expiration date	May 18, 2018
Common stock warrants issued with IPO
Class of Warrant or Right [Line Items]
Outstanding	1,119,907
Exercise price per share | $ / shares	$ 0.01
Expiration date	Nov. 11, 2019
Common stock warrants issued with senior secured notes
Class of Warrant or Right [Line Items]
Outstanding	2,260,334
Exercise price per share | $ / shares	$ 3
Expiration date	Dec. 22, 2021

Stockholders' Equity (Deficit38

Stockholders' Equity (Deficit) (Detail Textuals) - USD ($)	Mar. 08, 2017	May 31, 2017	Mar. 31, 2017	Mar. 31, 2016
Stockholders' Equity (Deficit) [Line Items]
Number of shares issued in cash			$ 575,521
Proceeds from the sale of common stock, net of offering costs			$ 679,789	$ 16,137,913
Lincoln Park
Stockholders' Equity (Deficit) [Line Items]
Purchase of up to shares of common stock	$ 15,400,000
Additional shares of common stock issued			110,995
Closing price	$ 1.50
Number of shares purchase by sole discretion on any business day	$ 30,000
Description of transaction	The price per share for such purchases will be equal to the lower of: (i) the lowest sale price on the applicable purchase date and (ii) the arithmetic average of the three (3) lowest closing sale prices for the Company’s common stock during the ten (10) consecutive business days ending on the business day immediately preceding such purchase date (in each case, to be appropriately adjusted for any reorganization, recapitalization, non-cash dividend, stock split or other similar transaction that occurs on or after the date of the purchase agreement).
Maximum amount of shares purchase increased as increase in share price	$ 1,000,000
Beneficial ownership percentage	4.99%
Shares issued during period			257,817
Number of shares issued in cash			$ 693,061
Number of shares issued as commitment shares			115,416
Payment for stock issuance cost			$ 117,540
Lincoln Park | Subsequent event
Stockholders' Equity (Deficit) [Line Items]
Additional shares of common stock issued		300,000
Proceeds from the sale of common stock, net of offering costs		$ 659,790

Stockholders' Equity (Deficit39

Stockholders' Equity (Deficit) (Detail Textuals 1)	Mar. 31, 2017$ / sharesshares
Warrant exercise price 0.01
Class of Warrant or Right [Line Items]
Warrants to acquire stock | shares	400,361
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 0.01
Warrant exercise price 3.00
Class of Warrant or Right [Line Items]
Warrants to acquire stock | shares	39,666
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 3

Stock Based Compensation (Detai

Stock Based Compensation (Details) - 2015 Equity Incentive Plan - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 2,327,391	$ (4,446,489)	$ 4,791,443	$ (1,956,455)
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	431,706	(3,281,214)	817,815	(1,924,806)
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1,895,685	$ (1,165,275)	$ 3,973,628	$ (31,649)

Stock Based Compensation (Det41

Stock Based Compensation (Details 1) - 2015 Equity Incentive Plan - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 2,327,391	$ (4,446,489)	$ 4,791,443	$ (1,956,455)
Equity-classified compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,327,391	(4,446,489)	4,791,443	(4,348,317)
Liability-classified compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 2,391,862

Stock Based Compensation (Det42

Stock Based Compensation (Details 2) - Performance-based stock units	6 Months Ended
	Mar. 31, 2017$ / sharesshares
Number of PSUs
Balance at October 1, 2016 | shares	247,309
Forfeitures | shares	(5,736)
Balance at March 31, 2017 | shares	241,573
Base Price Per PSU
Balance at October 1, 2016 | $ / shares	$ 6.33
Forfeitures | $ / shares	7.68
Balance at March 31, 2017 | $ / shares	$ 6.29

Stock Based Compensation (Det43

Stock Based Compensation (Details 3) - Restricted stock units	6 Months Ended
	Mar. 31, 2017$ / sharesshares
Number of RSUs
Balance at October 1, 2016 | shares	1,094,351
Granted | shares	615,000
Vested and settled | shares	(483,913)
Forfeitures | shares	(24,909)
Balance at March 31, 2017 | shares	1,200,529
Weighted Average Grant Date Fair Value
Balance at October 1, 2016 | $ / shares	$ 28.61
Granted | $ / shares	2.11
Vested and settled | $ / shares	29.05
Forfeitures | $ / shares	2.65
Balance at March 31, 2017 | $ / shares	$ 15.40

Stock Based Compensation (Det44

Stock Based Compensation (Detail Textuals) - 2011 Equity Incentive Plan - Officers, Employees, Consultants and Directors	Mar. 31, 2017shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance	1,159,420
Number of common stock outstanding under the Plan	241,573

Stock Based Compensation (Det45

Stock Based Compensation (Detail Textuals 1) - shares	Mar. 31, 2017	Sep. 30, 2016
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares outstanding under the Plan	1,200,529	1,094,351
2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares can be issued	2,638,101
2015 Equity Incentive Plan | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant	953,659
Common stock shares outstanding under the Plan	1,200,529

Stock Based Compensation (Det46

Stock Based Compensation (Detail Textuals 2) - Performance-based stock units	6 Months Ended
	Mar. 31, 2017USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of PSUs	10 years
Condition for early exercise of stock based performance units	Corporate valuation in excess of $400 million
Unamortized expense	$ 420,252
Period for recognition of unamortized expense	1 year 3 months
After third anniversary from issuance of stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%
Fourth anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%

Stock Based Compensation (Det47

Stock Based Compensation (Detail Textuals 3) - Restricted stock units	6 Months Ended
	Mar. 31, 2017USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized expense	$ 9,094,284
Period for recognition of unamortized expense	1 year 2 months 27 days
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of RSUs	2 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of RSUs	4 years