Emergence from Voluntary Reorganization under Chapter 11 / Fresh Start Accounting Fresh Start Accounting Adjustments - Fair Value Adjustment - Long Term Debt (Details) - USD ($) $ in Thousands	May 30, 2020	May 31, 2020
Fresh-Start Adjustment [Line Items]
Discount on Senior Secured Notes	$ (3,125)
Fresh-Start Adjustment, Increase (Decrease), Long-term Debt	175,000	$ 141,239
Fresh Start Accounting Adjustments [Member]
Fresh-Start Adjustment [Line Items]
Fresh-Start Adjustment, Increase (Decrease), Long-term Debt	20,070
Liability Component [Member] | Convertible Debt [Member]
Fresh-Start Adjustment [Line Items]
Fair value adjustment to the liability component of the Convertible Notes	$ 23,195