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Note 2 - Significant Accounting Policies (Detail) (USD $) | 9 Months Ended | 12 Months Ended | 24 Months Ended
--- | --- | --- | ---
Sep. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2012
Foreign Currency Transaction Gain (Loss), Realized |  | $ 26,000 | $ (200) | $ (187,000) |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) |  | 125,600 | 90,600 | 90,600 |  | 125,600
Amortization of Intangible Assets |  | 41,759 | 44,933 |  | 76,421 |
Weighted Average Amortization Period |  |  | 15 years |  |  |
Finite-Lived Intangible Assets, Amortization Expense, Next Five Years | 5 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) |  | 12,000 | 12,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term |  | 4 years 302 days | 5 years 54 days |  |  |
Allocated Share-based Compensation Expense |  | 10,000 | 33,000 | 42,000 |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized |  | 0 |  |  |  | 0
Proceeds from Stock Options Exercised |  | 20,980 |  | 170,266 |  |
Shipping, Handling and Transportation Costs |  | 1,767,000 | 1,725,000 | 1,603,000 |  |
Capitalized Costs |  | 181,000 | 145,000 |  |  | 181,000
Advertising Expense |  |  | $ 2,972,000 | $ 3,002,000 |  | $ 3,543,000
Machinery and Equipment [Member] | Minimum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  | 5 years |  |  |  |
Machinery and Equipment [Member] | Maximum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  | 10 years |  |  |  |
Furniture and Fixtures [Member] | Minimum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  | 5 years |  |  |  |
Furniture and Fixtures [Member] | Maximum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  | 7 years |  |  |  |
Vehicles [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  | 5 years |  |  |  |
Building and Building Improvements [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  | 40 years |  |  |  |
Director [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) |  |  | 12,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term |  |  |  | 6 years |  |
Minimum [Member] |  |  |  |  |  |
Amortization Of Capitalized Costs Period |  | 12 months |  |  |  |
Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term |  |  | 10 years |  |  |
Amortization Of Capitalized Costs Period |  | 18 months |  |  |  |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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