Annual report pursuant to Section 13 and 15(d)

Note 1 - Summary of Significant Accounting Policies - Activity in the Reserve Account (Details)

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Note 1 - Summary of Significant Accounting Policies - Activity in the Reserve Account (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2018
Mar. 25, 2017
Beginning balance $ 45 $ 45
Provisions for doubtful accounts (37)
Write-off of doubtful accounts
Ending balance $ 8 $ 45