Idaho Code Section 66-317

(13) "Gravely disabled" means a person who, as the result of mental illness, is:

(a) In danger of serious physical harm due to the person’s inability to provide for any of his own basic personal needs, such as nourishment, or essential clothing, medical care, shelter or safety; or

(b) Lacking insight into his need for treatment and is unable or unwilling to comply with treatment and, based on his psychiatric history, clinical observation or other clinical evidence, if he does not receive and comply with treatment, there is a substantial risk he will continue to physically, emotionally or mentally deteriorate to the point that the person will, in the reasonably near future, be in danger of serious physical harm due to the person’s inability to provide for any of his own basic personal needs such as nourishment, essential clothing, medical care, shelter or safety.