For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Revenue - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Contract asset	$ 0		$ 0		$ 55
Decrease in contract liability			(476)	$ 198
Total revenue	9,180	$ 3,708	17,294	8,371
Contract revenue
Disaggregation of Revenue [Line Items]
Revenue recognized from previously recorded contract liabilities	206	371	819	809
Total revenue	$ 292	$ 371	$ 923	$ 809
Customer Concentration Risk \| Accounts receivable \| Largest customer
Disaggregation of Revenue [Line Items]
Concentration risk			31.00%		35.00%
Customer Concentration Risk \| Accounts receivable \| Second largest customer
Disaggregation of Revenue [Line Items]
Concentration risk			14.00%		12.00%
Customer Concentration Risk \| Accounts receivable \| Third largest customer
Disaggregation of Revenue [Line Items]
Concentration risk			13.00%