Equity Incentive Plans (Summary of Stock Option Activity) (Details) - $ / shares	6 Months Ended	12 Months Ended
Jun. 30, 2023	Dec. 31, 2022
Equity Incentive Plans
Shares, Balance Beginning	3,352,803
Shares, Granted	17,500
Shares, Forfeited/Cancelled	(168,374)
Shares, Balance Ending	3,201,929	3,352,803
Vested and expected to vest at June 30, 2023	3,201,929
Exercisable at June 30, 2023	2,142,829
Weighted Average Exercise Price, Outstanding Beginning	$ 5.32
Weighted Average Exercise Price, Granted	2.36
Weighted Average Exercise Price, Forfeited/Cancelled	5.63
Weighted Average Exercise Price, Outstanding Ending	5.29	$ 5.32
Weighted Average Exercise Price, Vested and expected to vest at June 30, 2023	5.29
Weighted Average Exercise Price, Exercisable at June 30, 2023	$ 5.57
Weighted Average Remaining Contractual Term (Years), Outstanding	7 years 3 months 18 days	7 years 9 months 18 days
Weighted Average Remaining Contractual Term (Years), Vested and expected to vest at June 30, 2023	6 years 8 months 12 days
Weighted Average Remaining Contractual Term (Years), Exercisable at June 30, 2023	7 years 3 months 18 days

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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