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Description of the likelihood that an uncertainty in income taxes will not be sustained as a result of the examination by the taxing authority.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of major customers.

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Summary Of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) Customers	Dec. 31, 2018 USD ($) Customers	Dec. 31, 2017 USD ($)	Jan. 01, 2019
Significant Accounting Policies [Line Items]
Number Of Major Customers \| Customers	1	2
Advertisement expenses	$ 83	$ 160	$ 201
Stock options vesting period	3 years
Stock options period of expiry	10 years
Description of uncertain position	The first step is recognition, where the Company evaluates whether an individual tax position has a likelihood of greater than 50% of being sustained upon examination based on the technical merits of the position, including resolution of any related appeals or litigation processes. For tax positions that are currently estimated to have a less than 50% likelihood of being sustained, zero tax benefit is recorded.
Weighted Average Incremental Borrowing Rate				6.25%
Crop Inventory [Member]
Significant Accounting Policies [Line Items]
Inventory Write-down	$ 218	$ 401
Share-based Payment Arrangement, Tranche One [Member]
Significant Accounting Policies [Line Items]
Stock options vesting percentage	33.00%
Share-based Payment Arrangement, Tranche Two [Member]
Significant Accounting Policies [Line Items]
Stock options vesting percentage	33.00%
Share-based Payment Arrangement, Tranche Three [Member]
Significant Accounting Policies [Line Items]
Stock options vesting percentage	33.00%
Maximum [Member]
Significant Accounting Policies [Line Items]
Percentage of tax position likely to be sustained	50.00%
Minimum [Member]
Significant Accounting Policies [Line Items]
Percentage of tax position likely to be sustained	50.00%
Accounts Receivable [Member] \| Major Customer [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	16.90%
Accounts Receivable [Member] \| Major Customer One [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage		13.80%
Accounts Receivable [Member] \| Major Customer Two [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage		11.50%
Revenue Benchmark [Member] \| United States [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	83.00%	83.00%
Revenue Benchmark [Member] \| Walmart [Member] \| United States [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	11.80%
Revenue Benchmark [Member] \| Kroger [Member] \| United States [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	10.90%
Revenue Benchmark [Member] \| Publix Super Markets [Member] \| United States [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	10.60%
Produce Revenue [Member] \| Kroger [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage		11.40%
Produce Revenue [Member] \| Publix Super Markets [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage		12.00%