What's your weight, diet, anything else like that? in the past when youve taken meth, was it more of a mild relaxing uplifting effect or complete tweaking and stimulation? - all those things will affect how long it stays detectable in your body esp with such a small amount like that WIth that small amount it shouldnt be detectable past like 24-48 hours MAXIMUM, honestly, for myself I personally put it beyond 12hours but im 190lb 6'1 with 1-1.5gallons water a day plus beers (stating this so you can compare to yourself and normalize/quell your worries)
If youre on parole or something just wait the next day and by tomorrow this time you should be good to go, with such a small amount, you probably dislike advice but ill tell you right now, keep clean til you are off parole/UA testing so that you dont prolong your worries bro
All the best