It's my idea

Avoid it. There are better domains to invest in. Look at .COM / .NET / .ORG / .CO.UK. If you live in Canada or Australia, look at those. If you speak another language, look at domains in that language.

Lower risk. More buyers. Less cost. Higher likely sales prices.

If you're new to this industry then I would recommend keeping it to .COM...If you're from a specific country or have more experience then you might want to consider looking into ccTLDs..but I would recommend keeping it to the most popular ccTLD's like FR or DE...

I would not recommend dipping into .IM or other small ccTLD's unless you have specific development ideas or really know what you're doing. Otherwise, you could end up flushing allot of money down the drain.