Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]
Liquidity and Capital Resources	Liquidity and Capital Resources The Company's cash and cash equivalents were $9,190,077 and $19,271,642 at March 31, 2019 and December 31, 2018, respectively. The Company prepared the condensed consolidated financial statements assuming that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities during the normal course of business. In preparing these condensed consolidated financial statements, consideration was given to the Company’s future business as described below, which may preclude the Company from realizing the value of certain assets. The Company has significant operating cash flow deficiencies. Additionally, the Company will need significant funding for future operations and the expenditures that it believes will be required to support commercialization of its products and conduct the clinical and regulatory activities relating to the Company’s product candidates, satisfy existing obligations and liabilities, and otherwise support the Company’s intended business activities and working capital needs during 2019. The preceding conditions raise substantial doubt about the Company's ability to continue as a going concern. The condensed consolidated financial statements included elsewhere herein for the three months ended March 31, 2019, were prepared under the assumption that we would continue our operations as a going concern, which contemplates the realization of assets and the satisfaction of liabilities during the normal course of business. In preparing these condensed consolidated financial statements, consideration was given to our future business as described elsewhere herein, which may preclude us from realizing the value of certain assets. Our unaudited condensed consolidated financial statements do not include any adjustments that may result from the outcome of this uncertainty. Management’s plans include attempting to secure additional required funding through equity or debt financings, sales or out-licensing of intellectual property assets, products, product candidates or technologies, seeking partnerships with other pharmaceutical companies or third parties to co-develop and fund research and development efforts, or similar transactions, and through revenues from existing agreements and sales of prescription compounded formulations. There is no assurance that the Company will be successful in obtaining the necessary funding to meet its business objectives.
Basic and Diluted (Loss) per Share	Basic and Diluted (Loss) per Share The Company computes basic loss per share by dividing the loss attributable to holders of common stock for the period by the weighted average number of shares of common stock outstanding during the period. The diluted loss per share calculation is based on the treasury stock method and gives effect to dilutive options, warrants, convertible notes, convertible preferred stock and other potential dilutive common stock. The effect of common stock equivalents was anti-dilutive and was excluded from the calculation of weighted average shares outstanding. Potential dilutive securities, which are not included in diluted weighted average shares outstanding for the three months ended March 31, 2019 and March 31, 2018, consist of outstanding equity classified warrants (2,134,670 and 3,189,052 shares, respectively), outstanding options (8,945,878 and 9,246,202 shares, respectively), and outstanding restricted stock units (3,877,491 and 1,642,212 shares, respectively).
Prior Periods Reclassifications	Prior Periods Reclassifications Certain amounts in prior periods have been reclassified to conform with current period presentation related to the reserve for inventory obsolescence in the condensed consolidated statement of cash flows and had no effect on cash used in operations or statement of cash flows for the periods ended March 31, 2019 March 31, 2018. The reclassification has no effect on the condensed consolidated balance sheet as of March 31, 2019 and December 31, 2018, or the condensed consolidated statement of operations for the three months ended March 31, 2019 and March 31, 2018.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-02 Leases (Topic 842), also referred to as “ASC 842” or “New Lease Standard”, which supersedes ASC 840 Leases (Topic 840), and provides principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. The FASB has continued to clarify this guidance through the issuance of additional ASUs. The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than twelve months regardless of classification. Leases with a term of twelve months or less may be accounted for similar to existing guidance for operating leases. ASC 842 was effective for the Company for the year ending December 31, 2019. We reported our financial information for fiscal years ending before December 31, 2018 under the Topic 840 lease accounting standard. The Company applied the modified retrospective transition method and elected the transition option to use the effective date of January 1, 2019 as the date of initial application. The Company recognized the cumulative effect of the transition adjustment as of the effective date and will not provide any new lease disclosures for periods before the effective date. The Company elected the package of practical expedients and did not elect the use of the hindsight practical expedient. As a result, the Company will, in effect, continue to account for existing leases as classified in accordance with ASC 840, throughout the entire lease term, including periods after the effective date, with the exception that the Company will apply the new balance sheet recognition guidance for operating leases and apply ASC 842 for remeasurements and modifications after the transition date. Other key practical expedients elected by the Company (as a lessee) relate to maintaining leases with an initial term of 12 months or less off the balance sheet; not separating lease and non-lease components and the use of the portfolio approach to determine the incremental borrowing rate. For transition purposes, the Company used the incremental borrowing rate based on the total lease term and total minimum rental payments. The Company completed its identification of leases which comprised two building leases and two equipment leases. Further, the Company analyzed service contracts and parts assembly arrangements from suppliers and did not identify any material leases of production equipment. On the date of initial application, the Company recognized right-of-use ("ROU") assets and leasing liabilities on its condensed consolidated balance sheets of approximately $2 million. The adoption had no significant impact on the Company's condensed consolidated statement of operations.

Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2019

Liquidity and Capital Resources

The Company's cash and cash equivalents were $9,190,077 and $19,271,642 at March 31, 2019 and December 31, 2018, respectively.

The Company prepared the condensed consolidated financial statements assuming that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities during the normal course of business. In preparing these condensed consolidated financial statements, consideration was given to the Company’s future business as described below, which may preclude the Company from realizing the value of certain assets.

The Company has significant operating cash flow deficiencies. Additionally, the Company will need significant funding for future operations and the expenditures that it believes will be required to support commercialization of its products and conduct the clinical and regulatory activities relating to the Company’s product candidates, satisfy existing obligations and liabilities, and otherwise support the Company’s intended business activities and working capital needs during 2019. The preceding conditions raise substantial doubt about the Company's ability to continue as a going concern. The condensed consolidated financial statements included elsewhere herein for the three months ended March 31, 2019, were prepared under the assumption that we would continue our operations as a going concern, which contemplates the realization of assets and the satisfaction of liabilities during the normal course of business. In preparing these condensed consolidated financial statements, consideration was given to our future business as described elsewhere herein, which may preclude us from realizing the value of certain assets. Our unaudited condensed consolidated financial statements do not include any adjustments that may result from the outcome of this uncertainty. Management’s plans include attempting to secure additional required funding through equity or debt financings, sales or out-licensing of intellectual property assets, products, product candidates or technologies, seeking partnerships with other pharmaceutical companies or third parties to co-develop and fund research and development efforts, or similar transactions, and through revenues from existing agreements and sales of prescription compounded formulations. There is no assurance that the Company will be successful in obtaining the necessary funding to meet its business objectives.

Basic and Diluted (Loss) per Share

Basic and Diluted (Loss) per Share

The Company computes basic loss per share by dividing the loss attributable to holders of common stock for the period by the weighted average number of shares of common stock outstanding during the period. The diluted loss per share calculation is based on the treasury stock method and gives effect to dilutive options, warrants, convertible notes, convertible preferred stock and other potential dilutive common stock. The effect of common stock equivalents was anti-dilutive and was excluded from the calculation of weighted average shares outstanding. Potential dilutive securities, which are not included in diluted weighted average shares outstanding for the three months ended March 31, 2019 and March 31, 2018, consist of outstanding equity classified warrants (2,134,670 and 3,189,052 shares, respectively), outstanding options (8,945,878 and 9,246,202 shares, respectively), and outstanding restricted stock units (3,877,491 and 1,642,212 shares, respectively).

Prior Periods Reclassifications

Prior Periods Reclassifications

Certain amounts in prior periods have been reclassified to conform with current period presentation related to the reserve for inventory obsolescence in the condensed consolidated statement of cash flows and had no effect on cash used in operations or statement of cash flows for the periods ended March 31, 2019 March 31, 2018. The reclassification has no effect on the condensed consolidated balance sheet as of March 31, 2019 and December 31, 2018, or the condensed consolidated statement of operations for the three months ended March 31, 2019 and March 31, 2018.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-02 Leases (Topic 842), also referred to as “ASC 842” or “New Lease Standard”, which supersedes ASC 840 Leases (Topic 840), and provides principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. The FASB has continued to clarify this guidance through the issuance of additional ASUs. The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than twelve months regardless of classification. Leases with a term of twelve months or less may be accounted for similar to existing guidance for operating leases. ASC 842 was effective for the Company for the year ending December 31, 2019. We reported our financial information for fiscal years ending before December 31, 2018 under the Topic 840 lease accounting standard. The Company applied the modified retrospective transition method and elected the transition option to use the effective date of January 1, 2019 as the date of initial application. The Company recognized the cumulative effect of the transition adjustment as of the effective date and will not provide any new lease disclosures for periods before the effective date. The Company elected the package of practical expedients and did not elect the use of the hindsight practical expedient. As a result, the Company will, in effect, continue to account for existing leases as classified in accordance with ASC 840, throughout the entire lease term, including periods after the effective date, with the exception that the Company will apply the new balance sheet recognition guidance for operating leases and apply ASC 842 for remeasurements and modifications after the transition date.

Other key practical expedients elected by the Company (as a lessee) relate to maintaining leases with an initial term of 12 months or less off the balance sheet; not separating lease and non-lease components and the use of the portfolio approach to determine the incremental borrowing rate. For transition purposes, the Company used the incremental borrowing rate based on the total lease term and total minimum rental payments. The Company completed its identification of leases which comprised two building leases and two equipment leases. Further, the Company analyzed service contracts and parts assembly arrangements from suppliers and did not identify any material leases of production equipment. On the date of initial application, the Company recognized right-of-use ("ROU") assets and leasing liabilities on its condensed consolidated balance sheets of approximately $2 million. The adoption had no significant impact on the Company's condensed consolidated statement of operations.