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Note 2 - Option Agreement (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Mar. 20, 2012	Dec. 31, 2011
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					5.00%
Noncontrolling Interest, Ownership Percentage by Parent					96.00%
Increase In Shares Covered By Option					10.00%
Open Option Contracts Written, Exercise Price (in Dollars per Item)					1,000,000
Marketing Expense (in Dollars)	$ 592,000	$ 536,000	$ 1,771,000	$ 1,621,000
Other Liabilities, Noncurrent (in Dollars)	134,000		134,000			140,000
Option Expense [Member]
Marketing Expense (in Dollars)			18,000
Other Liabilities, Noncurrent (in Dollars)	$ 18,000		$ 18,000

X

- Definition

Increase in number of shares covered by the option

+ References

No definition available.

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X

- Definition

Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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X

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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X

- Definition

The exercise price of the open option contracts written on the investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 320

-Section S99

-Paragraph 3

-Subparagraph (SX 210.12-12B.Column C)

-URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611197-123010



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 12B

-Paragraph Column C

-Article 12

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- Definition

Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 24

-Article 5

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