diff --git c/arelle/CntlrProfiler.py i/arelle/CntlrProfiler.py
index a64bb1b..dc0299d 100644
--- c/arelle/CntlrProfiler.py
+++ i/arelle/CntlrProfiler.py
@@ -1,5 +1,6 @@
 
-import Cntlr, ModelManager, FileSource, time
+from arelle import Cntlr, ModelManager, FileSource
+import time
 from optparse import OptionParser
 import cProfile
 import gettext
diff --git c/arelle/ValidateFilingText.py i/arelle/ValidateFilingText.py
index 12dbbbb..c0e98c3 100644
--- c/arelle/ValidateFilingText.py
+++ i/arelle/ValidateFilingText.py
@@ -16,7 +16,7 @@ XMLdeclaration = re.compile(r"<\?xml.*\?>", re.DOTALL)
 XMLpattern = re.compile(r".*(<|&lt;|&#x3C;|&#60;)[A-Za-z_]+[A-Za-z0-9_:]*[^>]*(/>|>|&gt;|/&gt;).*", re.DOTALL)
 CDATApattern = re.compile(r"<!\[CDATA\[(.+)\]\]")
 #EFM table 5-1 and all &xxx; patterns
-docCheckPattern = re.compile(r"&\w+;|[^0-9A-Za-z`~!@#$%&\*\(\)\.\-+ \[\]\{\}\|\\:;\"'<>,_?/=\t\n\r\m\f]") # won't match &#nnn;
+docCheckPattern = re.compile(r"&\w+;|[^0-9A-Za-z`~!@#$%&\*\(\)\.\-+ \[\]\{\}\|\\:;\"'<>,_?/=\t\n\r\f]") # won't match &#nnn;
 namedEntityPattern = re.compile("&[_A-Za-z\xC0-\xD6\xD8-\xF6\xF8-\xFF\u0100-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]"
                                 r"[_\-\.:" 
                                 "\xB7A-Za-z0-9\xC0-\xD6\xD8-\xF6\xF8-\xFF\u0100-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u0300-\u036F\u203F-\u2040]*;")
@@ -904,4 +904,4 @@ def referencedFiles(modelXbrl, localFilesOnly=True):
     # footnote or other elements
     for elt in modelXbrl.modelDocument.xmlRootElement.iter("{http://www.w3.org/1999/xhtml}a", "{http://www.w3.org/1999/xhtml}img"):
         addReferencedFile(elt, elt)
-    return referencedFiles
\ No newline at end of file
+    return referencedFiles