XHTML Modular Schema for Inline XBRL

* The Inline XBRL (IX) Schema conforms to the latest draft of the Inline
  XBRL Specification, v0.55, to the degree that XML Schema allows for
  such conformance.  The goal is that it does not assert any additional
  restrictions on an Inline XBRL document beyond what is defined in the
  Inline XBRL Sepcification.

* The XHTML Modularization v1.1 Working Draft from 5 July 2006 was used
  as the basis for the schema:

	http://www.w3.org/TR/2006/WD-xhtml-modularization-20060705

* The XHTML v1.1 Module-based XHTML 2nd Edition Working Draft from 16
  February 2007 was used as a template for the Inline XBRL XHTML Modular
  Schema:

    http://www.w3.org/TR/2007/WD-xhtml11-20070216

* The base XHTML modular schemas were acquired on 13 February 2008 from:

    http://www.w3.org/MarkUp/SCHEMA/

* This schema intends to be a conformant XHTML Host Language, as defined
  in Section 3.1 of the XHTML Modularization v1.1 Working Draft
  specification.

* By following the XHTML Modularization requirements and conventions,
  the schema set consists of the following documents:

  xhtml-inlinexbrl-1_1.xsd              - Schema Driver, which imports
                                          the Model and Modules schemas
  xhtml-inlinexbrl-1_1-modules.xsd      - Composes modules for use in the
                                          model
  xhtml-inlinexbrl-1_1-model.xsd        - Defines the content models
                                          based on the modules
  xhtml-inlinexbrl-1_1-definitions.xsd  - Defines Inline XBRL elements
                                          and types

* The namespaces for these documents are as follows:

  xhtml-inlinexbrl-1_1.xsd             - http://www.w3.org/1999/xhtml
  xhtml-inlinexbrl-1_1-modules.xsd     - null
  xhtml-inlinexbrl-1_1-model.xsd       - null
  xhtml-inlinexbrl-1_1-definitions.xsd - http://www.xbrl.org/2013/inlineXBRL

* The Formal Public Identifier (FPI) is "-//XBRL International//DTD
  XHTML Inline XBRL 1.1//EN"

* The content type of XHTML+IX documents should be marked as text/html
  or application/xhtml+xml.

* Due to constraints on constructing XML Schemas, it is not possible to use
  the schema to verify if ix:header, ix:exclude, ix:numerator, or
  ix:denominator elements are correctly located within the content model of
  their ancestor elements.

* Referential integrity of ID/IDREF and related attributes have not yet been
  added to the schema (key/keyref).  [plega adds:] However, IDREF and IDREFS
  have now been replaced by xbrl.ix.idref(s).type to avoid using the schema
  to test ref matching.