Idle vs Work shows the indicator of idle to work ratio after 1 minute idle time. At any time you can call this indicator by clicking on the program's tray icon. Exact values of idle and work time in minutes is shown in tray icon's tooltip when mouse cursor is placed over the tray icon.
This program does not require installation, just download archive, unzip it into any folder and run the executable file. To delete program from your computer click "Uninstall" item from program's tray icon popup menu and then delete the executable file.