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Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted Weighted Average Remaining Contractual Term 2

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No definition available.

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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.

+ References

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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

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No definition available.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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No definition available.

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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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No definition available.

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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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No definition available.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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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Stock-Based Compensation - Service Based Stock Options (Details) - Stock option awards - service based awards - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2021	Dec. 31, 2020
Shares Underlying Options
Outstanding at the beginning of the period (in shares)	528,591	519,814	519,814
Granted (in shares)	909	7,672
Forfeited (in shares)	(14,839)	(16,721)
Expired (in shares)	(3,545)	(20,530)
Outstanding at the end of the period (in shares)	511,116	490,235
Exercisable at end of period (in shares)	236,720	251,180
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 32.01	$ 50.05	$ 50.05
Granted (in dollars per share)	4.07	17.60
Forfeited (in dollars per share)	17.49	27.39
Expired (in dollar per share)	85.36	84.26
Outstanding at the end of the period (in dollars per share)	32.01	48.95
Exercisable at end of the period (in dollars per share)	$ 52.14	$ 73.48
Weighted Average Remaining Contractual Term
Outstanding	7 years	6 years 1 month 6 days	7 years 6 months	6 years 7 months 6 days
Granted	9 years 10 months 24 days	6 years
Exercisable at end of the period	5 years	3 years 2 months 12 days
Aggregate Intrinsic Value
Outstanding	$ 1	$ 0			$ 0	$ 0
Exercisable at end of the period	$ 0	$ 0