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Note 2 - Significant Accounting Policies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Copyrights [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |
Trademarks [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |
Minimum [Member] | Machinery and Equipment [Member] |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |
Minimum [Member] | Furniture and Fixtures [Member] |  |  |
Property, Plant and Equipment, Useful Life | 7 years |  |
Minimum [Member] |  |  |
Capitalized Catalog, Useful Life | 1 year |  |
Maximum [Member] | Machinery and Equipment [Member] |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |
Maximum [Member] | Furniture and Fixtures [Member] |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |
Maximum [Member] |  |  |
Capitalized Catalog, Useful Life | 1 year 180 days |  |
Vehicles [Member] |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |
Building [Member] |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |
1995 Stock Option Plans [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |
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 |  |
Goodwill, Impairment Loss | $ 0 | $ 0 | $ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 0 | 0 | 12,000
Foreign Currency Transaction Gain (Loss), Realized | $ (24,000) | $ (13,900) | $ 41,000
Weighted Average Number Diluted Shares Outstanding Adjustment | 68,400 | 107,001 | 84,600
Amortization of Intangible Assets | $ 40,744 | $ 45,202 | $ 42,305
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 180 days |  |
Allocated Share-based Compensation Expense | $ 0 | 0 | 11,686
Shipping, Handling and Transportation Costs | 2,012,000 | 2,046,000 | 1,978,000
Capitalized Catalog, Costs | 181,000 | 171,000 |
Advertising Expense | $ 4,826,000 | $ 4,339,000 | $ 4,099,000

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