HI Dvir

Thanks for posting on the community. If you cancel your subscription without closing your account your documents will remain in your account and you will still be able to view them. However you will only have the features available to Free accounts and will not be able to edit your documents with full functionality. You can resubscribe at any time to continue editing all of your documents. The Renew or Cancel Your Subscription article from the Lucid Help Center will walk you through the details of how to do this. 

Hope this helps!