Identify number jump

I have an Identify field in the table using MS SQL 2012.

Identify increment is one and seed is one.

I run the applicaiton for a while and realized that the number jump once a while.

For example, the number jump from 114 to 10113 and 10140 to 20113.

I use Identify field in other appplications too, it is first time I see the number jump like this.

I would like to know what can be wrong or to configure at server side to avoid this.

Your help and information is great appreciated,

Regards,

Souris,