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Note 2 - Significant Accounting Policies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Foreign Currency Transaction Gain (Loss), Realized | $ 19,000 | $ 24,000 | $ (13,900) |
Weighted Average Number Diluted Shares Outstanding Adjustment | 90,085 | 68,400 | 107,001 |
Amortization of Intangible Assets | $ 6,442 | $ 40,744 | $ 45,202 |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 180 days |  |  |
Shipping, Handling and Transportation Costs | $ 1,982,000 | 2,012,000 | 2,046,000 |
Capitalized Catalog, Costs | 213,000 | 181,000 |  |
Advertising Expense | $ 4,759,000 | $ 4,826,000 | $ 4,339,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 0 | 0 | 0 |
Allocated Share-based Compensation Expense | $ 0 | $ 0 | $ 0 |
Goodwill, Impairment Loss | $ 0 | $ 0 | $ 0 |
Restricted Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 300,000 |  |  |
1995 Stock Option Plans [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |  |
Trademarks [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  |
Copyrights [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  |
Minimum [Member] |  |  |  |
Capitalized Catalog, Useful Life | 1 year |  |  |
Maximum [Member] |  |  |  |
Capitalized Catalog, Useful Life | 1 year 180 days |  |  |
Machinery and Equipment [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life | 3 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 | 7 years |  |  |
Furniture and Fixtures [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |  |
Vehicles [Member] |  |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |  |
Building and Building Improvements [Member] |  |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |  |

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