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Organization and Summary of Significant Accounting Policies - Textual (Details) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2019 USD ($) segment | Dec. 31, 2019 USD ($) segment customer shares | Dec. 31, 2018 USD ($) customer shares
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Number of research organization performing service under contract | segment |  | 2 | 2 |
Number of operating segments | segment |  |  | 1 |
Revenues |  |  | $ 1,681,076 | $ 1,295,451
Allowance for doubtful accounts receivable |  | $ 0 | $ 0 | $ 0
Antidilutive securities excluded from computation of earnings per share (in shares) | shares |  |  | 3,860,390 | 3,552,890
Customer Concentration Risk | Revenue |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, number of customers | customer |  |  | 10 | 6
Customer Concentration Risk | Accounts Receivable |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, number of customers | customer |  |  | 5 | 4
Outside of United States | Customer Concentration Risk |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, number of customers | customer |  |  | 4 |
Outside of United States | Customer Concentration Risk | Revenue |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 71.50% | 21.70%
Revenues |  | $ 1,202,000 |  | $ 281,000
Outside of United States | Customer Concentration Risk | Accounts Receivable |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, percentage |  | 69.50% |  |
Accounts receivable |  | $ 388,000 | $ 388,000 |
United States | Customer Concentration Risk | Accounts Receivable |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, percentage |  |  |  | 100.00%
DuPont Danisco | Industrial Technology Business |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Proceeds from sales of business | $ 75,000,000 |  |  |
Contract Research Organizations (CRO) | Customer Concentration Risk |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 86.60% | 88.40%
Contract Research Organizations (CRO) | Customer Concentration Risk | Accounts Payable |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 74.90% | 76.80%
Accounts payable |  | $ 706,000 | $ 706,000 | $ 237,000

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