Long-term debt - Summary of Long Term Debt (Parenthetical) (Detail) - USD ($)
|
12 Months Ended |
Mar. 28, 2020 |
Mar. 30, 2019 |
| Debt Instrument [Line Items] |
|
|
| Net of deferred financing costs |
$ 400,000
|
$ 600,000
|
| Term Loan from Investissement Quebec Prime Plus Seven Percent [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Annual rate of prime plus |
7.00%
|
7.00%
|
| Balance of term loan |
$ 5,000,000
|
$ 5,000,000
|
| Line of Credit Facility Repayment Date |
Jun. 05, 2019
|
|
| Term Loan from Investissement Quebec Prime Plus Ten Percent [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Annual rate of prime plus |
10.00%
|
10.00%
|
| Balance of term loan |
$ 2,000,000
|
$ 2,000,000
|
| Line of Credit Facility Repayment Date |
Jun. 05, 2019
|
|
| Finance Lease Obligations [Member] | Minimum [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Debt Instrument Interest Rate Stated Percentage Rate |
2.20%
|
2.20%
|
| Finance Lease Obligations [Member] | Maximum [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Debt Instrument Interest Rate Stated Percentage Rate |
3.30%
|
3.30%
|
| Cash Contribution one [Member] | Montel [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Interest on Cash advances |
11.00%
|
11.00%
|
| Cash received from related party |
$ 1,500,000
|
$ 1,500,000
|
| Cash Contribution Two [Member] | Montel [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Interest on Cash advances |
11.00%
|
11.00%
|
| Cash received from related party |
$ 2,500,000
|
$ 2,500,000
|
| Term Loan Facility Repayable At October Two Thousand Twenty Two [Member] | Term Loan From Crystal Financial LLC CDOR Plus Eight Point Two Five Percent [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Debt Instrument Interest Rate Stated Percentage Rate |
8.25%
|
8.25%
|
| Net of deferred financing costs |
$ 272,000
|
$ 378,000
|