The average foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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- Definition

Income Loss From Equity Method Investments Tax

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Increase Decrease In Equity Method Investment Due To Currency Translation

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The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Investments - Additional Information (Detail)	3 Months Ended		6 Months Ended
Investments - Additional Information (Detail)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses), net of taxes	$ (69,000)	$ 155,000	$ (185,000)	$ 232,000
Grupo Vasconia S.A.B.
Schedule of Equity Method Investments [Line Items]
Percentage of ownership in equity method investment	30.00%		30.00%
Exchange rate at period end - MXN to USD	19.19		19.19		19.64
Increase (Decrease) in equity method investment			$ 1,500,000	1,100,000
Equity in earnings (losses), net of taxes		155,000		232,000
Equity in earnings, deferred taxes expense		$ (501,000)		$ (306,000)
Fair value of investment	$ 34,200,000		34,200,000		$ 31,900,000
Carrying value of investment	20,900,000		20,900,000		22,600,000
Grupo Vasconia S.A.B. \| Prepaid expenses and other current assets
Schedule of Equity Method Investments [Line Items]
Due from related party	159,000		159,000		95,000
Grupo Vasconia S.A.B. \| Accounts payable and accrued expenses
Schedule of Equity Method Investments [Line Items]
Due to related party	$ 68,000		$ 68,000		$ 0
Grupo Vasconia S.A.B. \| Transaction 02
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period - MXN to USD	19.11	19.38
Grupo Vasconia S.A.B. \| Transaction 03 \| Minimum
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period - MXN to USD			19.11
Grupo Vasconia S.A.B. \| Transaction 03 \| Maximum
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period - MXN to USD			19.24
Grupo Vasconia S.A.B. \| Transaction 04 \| Minimum
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period - MXN to USD				18.71
Grupo Vasconia S.A.B. \| Transaction 04 \| Maximum
Schedule of Equity Method Investments [Line Items]
Average daily exchange rate for period - MXN to USD				19.38