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

No definition available.

Name:	copy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAndExercisableIntrinsicValue
Namespace Prefix:	copy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding and exercisable as of the balance sheet date.

No definition available.

Name:	copy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAndExercisableNumber
Namespace Prefix:	copy_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

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

No definition available.

Name:	copy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAndExercisableWeightedAverageExercisePrice
Namespace Prefix:	copy_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(4)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(g)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration