Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

NameScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespacehttp://fasb.org/us-gaap/2020-01-31
Prefixus-gaap
Data typenonnum:textBlockItemType
Period typeduration
Substitution Groupxbrli:item
BalanceNone
NillableTrue
AbstractFalse

Labels

TextLangRoleContainer role
Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.en-UShttp://www.xbrl.org/2003/role/documentationhttp://www.xbrl.org/2003/role/link
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]en-UShttp://www.xbrl.org/2003/role/labelhttp://www.xbrl.org/2003/role/link

References

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NameAccounting Standards Codificationhttp://fasb.org/us-gaap/role/ref/legacyRef
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