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Note 9 - Related Party Transactions (Details Textual) - USD ($)					3 Months Ended						9 Months Ended	12 Months Ended
	Jan. 06, 2021	Nov. 01, 2020	Apr. 01, 2020	Jan. 06, 2020	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Dec. 31, 2020
Shares Issued, Price Per Share (in dollars per share)			$ 1.08
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture, Total					$ 129,007	$ 150,542	$ 120,535	$ 149,993	$ 83,284	$ 59,491
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			1,444,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			10 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			103,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			3 years
Shares Issued, Price Per Share (in dollars per share)			$ 1.08
Chief Financial Officer [Member]
Treasury Stock, Shares, Acquired (in shares)	11,860			11,860
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 3.25			$ 1.74
Chief Financial Officer [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			200,000
President and Chief Executive Officer [Member]
Treasury Stock, Shares, Acquired (in shares)		54,756
Shares Issued, Price Per Share (in dollars per share)		$ 1.5779
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (in shares)		136,891
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture, Total		$ 216,000
President and Chief Executive Officer [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			300,000
Director One [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			10,000
Director Two [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			30,000
Angry Pug Sportswear [Member]
Related Party Transaction, Purchases from Related Party											$ 3,957	$ 9,886
President and Chief Executive Officer [Member] | Angry Pug Sportswear [Member]
Ownership Percentage											50.00%

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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