How to get LastWeek Friday to Thursday in SSRS report?

Hi guys,

i have a requirement to show last week Friday to Thursday,
in my report i have TimeFrame Parameter  and i have a Date Covered text box in report table, when i select LastWeek value in TimeFrame parameter, i have to show last Friday to Thursday in Date Covered text box, now i am able to show Monday to Sunday by using this expression in Date Covered text box:

=Trim(Parameters!DimDateFilterDateFilters.Label) = "Last Week", Format(dateadd(DateInterval.Day, 2-WeekDay(Today), DateAdd(DateInterval.Day, -7, Today)), "MM/dd/yyyy")
+" - "+
Trim(Parameters!DimDateFilterDateFilters.Label) = "Last Week", Format(dateadd(DateInterval.Day, 1-WeekDay(Today), Today), "MM/dd/yyyy")

Note:DimDateFilterDateFilters parameter's prompt name is Time Frame

and this is the scenario in report:

and i am building this report on CUBE data source using MDX.

Thanks in advance!!!

Regards,

Naveen N