Wiktionary
better than nothing
a. barely useful, almost useless, but nevertheless better than having nothing at all.
Usage examples of "better than nothing".
By the end of the year I'd have to dig up a new prospect, somebody so anxious to recover what was legally his that he'd give me half its value for getting it back, half being decidedly better than nothing.
It contained only a hundred and eighty dollars, but this was better than nothing.
Still anything was better than nothing and the blooming suns of destroyed ships, coupled with the silvery streaks of hypervelocity anti-ship missiles, made for quite a show.
Only for a year, but I hope you will agree that it is better than nothing.