XML 46 R18.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Impact of Accounting Standards and Interpretations | 9 Months Ended
--- | ---
Dec. 31, 2013
IMPACT OF ACCOUNTING STANDARDS AND INTERPRETATIONS [Abstract] |
New Accounting Pronouncement, Early Adoption [Table Text Block] | IMPACT OF ACCOUNTING STANDARDS AND INTERPRETATIONS In February 2013, the FASB issued ASU No. 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income,” (“ASU 2013-02”). ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income in financial statements. The amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under GAAP that provide additional detail about those amounts. ASU 2013-02 is effective prospectively for reporting periods beginning after December 15, 2012. The adoption of ASU 2013-02 did not have any effect on the Company's consolidated statement of financial condition or results of operations. Information required by ASU 2013-02 is presented in note 5 to the financial statements.

X
- Details
Name: | carv_ImpactOfAccountingStandardsAndInterpretationsAbstract
Namespace Prefix: | carv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financial statement line items and the effect of the guidance on the financial statement line items if the entity elects early adoption of accounting guidance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 28 -Section 65 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=19773497&loc=SL6892059-166502 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 605 -Section 65 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=19773443&loc=SL6751214-165967 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 25 -Section 65 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=19771798&loc=SL6749767-165964 + Details
Name: | us-gaap_NewAccountingPronouncementEarlyAdoptionTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration