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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