Decimal as identity

I will stay with int, bigint, etc. and will not use decimal. This question is about using decimal if need be. I am just investigating this.

Question: How can I correct the following:

CREATE TABLE MyOrders
(
orderid decimal(10,4) NOT NULL IDENTITY(0, 0.02)
 CONSTRAINT PK_MyOrders_orderid PRIMARY KEY
, custid INT NOT NULL
, empid INT NOT NULL
, orderdate DATE NOT NULL);

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Error:
Msg 2749, Level 16, State 2, Line 27
Identity column 'orderid' must be of data type int, bigint, smallint, tinyint, or decimal or numeric with a scale of 0, and constrained to be nonnullable.

I am running it in SQL Server 2014. Is it deprecated in this version of there is something wrong with the following line:
orderid decimal(10,4) NOT NULL IDENTITY(0, 0.02)
 CONSTRAINT PK_MyOrders_orderid PRIMARY KEY