Presentation and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Jan. 31, 2020	May 01, 2019
Accounting Policies [Line Items]
Right of use assets	$ 2,228
Current lease liabilities	770
Long-term lease liabilities	$ 1,596
Accounting Standards Update 2016-02
Accounting Policies [Line Items]
Right of use assets		$ 2,700
Current lease liabilities		700
Long-term lease liabilities		$ 2,100