Business and Basis of Presentation (Policies)	3 Months Ended
Business and Basis of Presentation (Policies)	Mar. 31, 2020
Accounting Policies [Abstract]
Share-based Payment Arrangement [Policy Text Block]	Stock-based Compensation Total compensation cost related to non-vested awards not yet recognized at March 31, 2020 was $408,144. The total compensation costs are expected to be recognized over a weighted-average period of 0.8 years.
Unaudited Interim Financial Statements	Unaudited Interim Financial Statements The accompanying unaudited balance sheet as of March 31, 2020, unaudited statements of operations, changes in stockholders' equity and cash flows for the quarters ended March 31, 2020 and 2019 have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. The accompanying balance sheet as of December 31, 2019 has been derived from audited financial statements prepared at that date, but does not include all disclosures required by accounting principles generally accepted in the United States of America. In the opinion of management, the financial statements include all normal and recurring adjustments considered necessary for a fair presentation of the Company’s financial position and operating results. Operating results for the three months ended March 31, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020 or any other period. These financial statements and notes should be read in conjunction with the financial statements for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K, as filed with the Securities and Exchange Commission, or the SEC, on January 28, 2020 (File No. 001-33351), or the Company’s 2019 Form 10-K.
Revenues	Revenues Revenues include product sales, net of estimated returns. Revenue is measured as the amount of consideration the Company expects to receive in exchange for product transferred. Revenue is recognized when contractual performance obligations have been satisfied and control of the product has been transferred to the customer. In most cases, the Company has a single product delivery performance obligation. Accrued product returns are estimated based on historical data and evaluation of current information. Accounts receivable are recorded net of the allowance for doubtful accounts, which represents the Company’s best estimate of credit losses. Allowance for doubtful accounts was $70,000 as of March 31, 2020 and December 31, 2019. Two customers accounted for 36% of total revenues in the quarter ended March 31, 2020. Two customers accounted for 32% of total revenues in the quarter ended March 31, 2019. Three customers accounted for 62% and two customers accounted for 42% of accounts receivable as of March 31, 2020 and December 31, 2019, respectively. Collaboration income Collaboration income is recognized within Other income when contractual performance obligations, outside the ordinary activities of the Company, have been satisfied and control has been transferred to a collaboration partner. Collaboration income for each performance obligation is based on the fair value of such performance obligation relative to the total fair value of all performance obligations multiplied by the overall transaction price. A deferred collaboration income liability is recorded when payments are received prior to satisfaction of performance obligations. A collaboration receivable is recorded when amounts are owed to the Company under the collaboration agreements and related support services. The Company recognized Collaboration income net of costs, within Other income in the Statement of Operations of zero and $5,734,849, for the quarters ended March 31, 2020 and 2019, respectively.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make significant 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 the reported amounts of revenue and expenses during reporting periods. Actual results could differ from those estimates.