Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies - Additional Information (Details)

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Organization and Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
segment
Dec. 31, 2019
USD ($)
Schedule of Organization and Summary of Significant Accounting Policies    
Number of Operating Segments | segment 1  
Substantial Doubt about Going Concern, Management's Evaluation Going concern assessmentWe assess going concern uncertainty in our condensed financial statements to determine if we have sufficient cash on hand and working capital, including available borrowings on loans, to operate for a period of at least one year from the date the financial statements are issued or available to be issued, which is referred to as the "look-forward period" as defined by Accounting Standard Update ("ASU") No. 2014-15. As part of this assessment, based on conditions that are known and reasonably knowable to us, we will consider various scenarios, forecasts, projections, estimates and will make certain key assumptions, including the timing and nature of projected cash expenditures or programs, and its ability to delay or curtail expenditures or programs, if necessary, among other factors. Based on this assessment, as necessary or applicable, we make certain assumptions around implementing curtailments or delays in the nature and timing of programs and expenditures to the extent we deem probable those implementations can be achieved and we have the proper authority to execute them within the look-forward period in accordance with ASU No. 2014-15.Based upon the above assessment, we concluded that, at the date of filing the financial statements in this Quarterly Report on Form 10-Q for the six months ended June 30, 2020, we did not have sufficient cash to fund our operations for the next 12 months without additional funds and, therefore, there is substantial doubt about our ability to continue as a going concern within 12 months after the date the financial statements were issued.  
Cash and Cash Equivalents, at Carrying Value $ 5,498 $ 5,223
Fair Value, Recurring [Member] | Money Market Funds [Member]    
Schedule of Organization and Summary of Significant Accounting Policies    
Cash and Cash Equivalents, at Carrying Value $ 5,300 $ 4,900