Equipment loan payables (Details) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Equipment Loan Payable [Line Items]
Interest expense	$ 21,000	$ 46,000
Future payments as per agreement
2021	366,000
2022	134,000
Total	$ 500,000
Equipment Loan Payable
Equipment Loan Payable [Line Items]
Frequency of payment	monthly
Interest expense	$ 21,000	$ 46,000
Future payments as per agreement
2021	117,000
Total	117,000
Less amounts representing interest	(4,000)
Total equipment loan payable	$ 113,000
Equipment Loan Payable \| Minimum
Equipment Loan Payable [Line Items]
Term of agreement	36 months
Monthly payments	$ 1,000
Interest rate	9.03%
Equipment Loan Payable \| Maximum
Equipment Loan Payable [Line Items]
Term of agreement	38 months
Monthly payments	$ 8,000
Interest rate	12.08%

Line item represents equipment loan payable.

No definition available.

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Balance Type:	debit
Period Type:	duration

- Definition

Aggregate amount of interest paid or due on all long-term debt.

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- Definition

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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- Definition

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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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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