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Organization and Summary of Significant Accounting Policies - Textual (Details)			3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 22, 2017 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2019 USD ($) customer shares	Sep. 30, 2018 USD ($) customer shares	Sep. 30, 2019 USD ($) customer segment shares	Sep. 30, 2018 USD ($) customer shares	Dec. 31, 2018 USD ($) customer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating segments | segment					1
Revenues			$ 454,507	$ 262,960	$ 1,247,908	$ 608,576
Allowance for doubtful accounts receivable			0		0		$ 0
Tax cuts and jobs act, change in alternative minimum tax, income tax benefit	$ 1,001,233
Cash received from income tax refund					506,866	0
Provision for income taxes			0	$ 0	900	$ 0
Unrecognized tax benefits			0		0		0
Deferred tax assets, net			$ 6,900,000		$ 6,900,000		$ 4,600,000
Deferred tax assets, valuation allowance coverage, percent			100.00%		100.00%		100.00%
Antidilutive securities excluded from computation of earnings per share (in shares) | shares			4,006,390	4,006,390	3,411,890	3,411,890
Customer Concentration Risk | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | customer			5	4	8	5
Customer Concentration Risk | Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | customer					3		4
United States | Customer Concentration Risk | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage				100.00%		100.00%
United States | Customer Concentration Risk | Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage							100.00%
Outside of the United States | Customer Concentration Risk | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | customer			3		3
Concentration risk, percentage			77.00%		73.60%
Revenues			$ 351,000		$ 918,000
Outside of the United States | Customer Concentration Risk | Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | customer			1
Concentration risk, percentage			79.30%
Accounts receivable			$ 332,000		$ 332,000
DuPont Danisco | Industrial Technology Business
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Proceeds from sales of business		$ 75,000,000

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