Certificate of deposit associated with the lease in October 2018.

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Number of principal payment installment.

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End Of Term Fee

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long term debt (Details)			1 Months Ended	12 Months Ended
Long term debt (Details)	Apr. 15, 2019 installment	Apr. 14, 2014	Aug. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Oct. 02, 2018 USD ($)
Debt Instrument [Line Items]
Amount borrowed under the loan facility				$ 7,688,000
Drawing capacity						$ 1,000,000
End Of Term Fee				50,000
Loan principal payment installment \| installment	5
Loan agreement
Debt Instrument [Line Items]
Additional amounts available to borrow				$ 0
Amendment 5 to loan agreement
Debt Instrument [Line Items]
Term fee			$ 80,000
Cost incurred upon execution			$ 50,000
Amendment 6 to loan agreement
Debt Instrument [Line Items]
Certificate of deposit associated with the lease					$ 1,000,000
Prime rate \| Loan agreement
Debt Instrument [Line Items]
Margin on variable interest rate (as a percent)		5.25%
Minimum \| Loan agreement
Debt Instrument [Line Items]
Interest rate (as a percent)		8.00%