Multiple re entry visa

Assalamualaikum
My wife and son came to saudi on two years multiple re entry visa in October 2018 and they both left Saudi in October 2019
So they stayed for one year maximum
And they are still in india at present
Can they both come back to saudi on the same visa?
Please answer

How did they stay for one year?  on a family visit, the max you can stay is 6 months and with an extension after which you have to exit.  Or are you referring to an Iqama?

After first 3mnths extended visa... After 3 more months (i. E. 6mnths) re entry has done and after 3 more months extended the visa then left Saudi.
So nearly one year they stayed here and left Saudi in November last year, so nie us there vuda valid? Can they both come back on same visa?