XML 52 R40.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investment (Future Principal Receipts Related to Available-For-Sale Security by Contractual Maturity) (Details)
$ in Thousands
Oct. 28, 2018
USD ($)
Available For Sale Securities [Abstract]  
Within one year $ 113
After one year through five years 801
After five years through ten years 1,291
After ten years 4,118
Total $ 6,323