(4) Commitments & Contingencies - Maturity of capitalized lease liabilities (Details)	Mar. 28, 2020 USD ($)
Commitments (note 4)
2020 (remaining)	$ 117
2021	26
Total undiscounted operating lease payments	143
Less: Imputed interest	(7)
Present value of operating lease liability	136
Current lease liability	136
Long-term lease liability	0
Total operating lease liability	$ 136
Weighted-average remaining lease term for capitalized operating leases	11 months
Weighted-average discount rate for capitalized operating leases	650.00%

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Amount of lessee's undiscounted obligation for lease payment for operating lease.

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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