Well if online status say decision made it mean your journey to citizenship i over and you are in line for the OATH , so good news and goo luck to get oath sooner generally its 3 to 5 month you can get it in this time frame , unless citizenship officer forget to update anything , if its pass 6 month you call the cic customer service and ask them the delay and they will make note to the citizenship officer about it
hope it helps
hope it helps