Equity in Net Assets of Investee Companies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	30.00%
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Sales	$ 125,621	$ 119,252	$ 112,362
Gross profit	13,888	9,191	15,057
Net income	3,341	147	5,026
Company's dividends received	998	1,480	0
Equity Method Investment, Summarized Financial Information, Assets [Abstract]
Current assets	66,670	63,732
Property, plant and equipment and other assets	35,177	35,697
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]
Current liabilities	50,086	47,766
Long-term obligations and other liabilities	2,811	4,019
Interest of other shareholders	24,965	24,299
Company's interest	$ 23,986	$ 23,346
Transcontinental Leaf Tobacco India Private Ltd. (India) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Siam Tobacco Export Company (Thailand) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Adams International Ltd. (Thailand) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%

Equity Method Investment, Summarized Financial Information, Interest of Other Shareholders

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- Definition

This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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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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The amount of current assets reported by an equity method investment of the entity.

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The amount of current liabilities reported by an equity method investment of the entity.

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Amount of equity, excluding noncontrolling interest, attributable to the equity method investment of the entity.

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The amount of gross profit (loss) reported by an equity method investment of the entity.

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The amount of net income (loss) reported by an equity method investment of the entity.

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The amount of noncurrent assets reported by an equity method investment of the entity.

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The amount of noncurrent liabilities reported by an equity method investment of the entity.

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- Definition

The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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