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Long-term Debt and Other Long-Term Liabilities - Additional Information (Details) - CAD ($) | 12 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Annual Interest Rate 4.9% Mortgage Payable Due August 1, 2021 |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Borrowings, maturity | August 1, 2021 | August 1, 2021
Interest rate | 4.90% | 4.90%
Annual Interest Rate of 5.3% Mortgage Payable Due December 1, 2019 |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Borrowings, maturity | December 1, 2019 | December 1, 2019
Interest rate | 5.30% | 5.30%
Annual Interest Rate of 4.8% Mortgage Payable Due December 1, 2020 |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Borrowings, maturity | December 1, 2020 | December 1, 2020
Interest rate | 4.80% | 4.80%
Revolving Line of Credit | Canada | CIBC Prime Rate |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Description of variable interest basis | CIBC prime rate plus 1.2% | CIBC prime rate plus 1.2%
Adjustment to Prime Rate for Borrowings | 1.20% | 1.20%
Variable interest rate term | 5 years | 5 years
Revolving Line of Credit | Canada | Maximum |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Revolving lines of credit | $ 5,500,000 | $ 5,500,000
Term Loan 10% Due October 1, 2024 |  |
Disclosure Of Detailed Information About Borrowings [Line Items] |  |
Borrowings, maturity | October 1, 2024 | October 1, 2024
Interest rate | 10.00% | 10.00%
Term of mortgage payable | 10 years |
Rent expenses | $ 27,000 |

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