That is also the teaching of the Orthodox Church and is based on "And inasmuch as it is appointed for men to die once and after this comes judgment..." [Heb 9:27]
The essence of the particular jugdment is the same as that of the Final (Terrible) Judgment. After the particular judgment, the sould is said to know if it is destined to heaven or to hell, a "foretaste" of what is to come.
You will be judged immediately upon your death, and based on what you have done with your talents, and what was in your heart. God gives us blessings; some people use them to bless others; other people use them to do evil with them. The meek, the pure in heart, the merciful, the suffering, etc., i.e. those who have attained the likness of Christ, will find their rewards in heaven.
Thanks, Kosta. I wasn't sure how you all saw this.