|PowerShares VRDO Tax-Free Weekly ETF|
|The investment seeks investment results that generally correspond (before fees and expenses) to the price and yield of the Bloomberg US Municipal AMT-Free Weekly VRDO Index.
The fund generally invests at least 80% of its total assets in variable rate demand obligation bonds that are exempt from federal income tax with interest rates that reset weekly, which comprise the underlying index.|
| ||PVI||Category Avg|
|Annual Report Expense Ratio (net)||0.25%||0.23%|
|Annual Holdings Turnover||0.00%||25.70|
|Total Net Assets||NaN||NaN|