Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDue
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of required minimum payments maturing in the next fiscal year following the latest fiscal year for royalty and license having an initial or remaining non-cancelable letter-terms in excess of one year.

No definition available.

Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDueCurrent
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of required minimum payments maturing in the fifth fiscal year following the latest fiscal year for royalty and license having an initial or remaining non-cancelable letter-terms in excess of one year.

No definition available.

Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDueInFiveYears
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of required minimum payments maturing in the forth fiscal year following the latest fiscal year for royalty and license having an initial or remaining non-cancelable letter-terms in excess of one year.

No definition available.

Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDueInFourYears
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of required minimum payments maturing in the third fiscal year following the latest fiscal year for royalty and license having an initial or remaining non-cancelable letter-terms in excess of one year.

No definition available.

Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDueInThreeYears
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of required minimum payments maturing in the second fiscal year following the latest fiscal year for royalty and license having an initial or remaining non-cancelable letter-terms in excess of one year.

No definition available.

Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDueInTwoYears
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of required minimum payments maturing after the fifth fiscal year following the latest fiscal year for royalty and license having an initial or remaining non-cancelable letter-terms in excess of one year.

No definition available.

Name:	esca_RoyaltyAndLicenseFutureMinimumPaymentsDueThereafter
Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.