v2.4.0.8

Stock Options Outstanding Under Equity Incentive Plans (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Options	279,000	433,000	546,001
Weighted Average Exercise Price	$ 3.31	$ 3.60	$ 4.54
Weighted Average Remaining Contractual Life (Years)	2 years 6 months	2 years 4 months 24 days
Options Exercisable	269,000	425,000
Weighted Average Exercise Price	$ 3.29	$ 3.64
Previously Approved Plans | $0.63 - $4.50
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices, lower limit		$ 0.63
Range of exercise prices, upper limit		$ 4.50
Outstanding Options		190,000
Weighted Average Exercise Price		$ 1.65
Weighted Average Remaining Contractual Life (Years)		2 years 8 months 12 days
Options Exercisable		180,000
Weighted Average Exercise Price		$ 1.53
Previously Approved Plans | $4.75 - $9.80
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices, lower limit		$ 4.75
Range of exercise prices, upper limit		$ 9.8
Outstanding Options		89,000
Weighted Average Exercise Price		$ 6.85
Weighted Average Remaining Contractual Life (Years)		2 years
Options Exercisable		89,000
Weighted Average Exercise Price		$ 6.85
Previously Approved Plans | $0.63 - $9.80
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices, lower limit		$ 0.63
Range of exercise prices, upper limit		$ 9.8
Outstanding Options		279,000
Weighted Average Exercise Price		$ 3.31
Weighted Average Remaining Contractual Life (Years)		2 years 6 months
Options Exercisable		269,000
Weighted Average Exercise Price		$ 3.29

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Number of options outstanding, including both vested and non-vested options.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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-Publisher FASB

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Paragraph 2

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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