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Supplemental Cash Flow Information (Details) - USD ($)
12 Months Ended
Mar. 31, 2019
Apr. 01, 2018
Mar. 26, 2017
Supplemental Cash Flow Information      
Cash paid for income taxes, net of refunds $ 1,835,400 $ 2,440,000 $ 55,600
Cash paid for interest 809,000 406,200 60,600
Interest capitalized $ 0 $ 0 $ 0