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Supplemental Cash Flow Information (Details) - USD ($)
12 Months Ended
Mar. 26, 2017
Mar. 27, 2016
Mar. 29, 2015
Supplemental Cash Flow Information      
Cash paid for income taxes, net of refunds $ 55,600 $ 1,979,800 $ 4,914,000
Cash paid for interest 60,600 180,300 174,600
Interest capitalized $ 0 $ 0 $ 3,400