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Note 7 - Intangible Assets (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total		$ 496,464	$ (1,481,265)
Earnings Per Share, Basic and Diluted, Total (in dollars per share)		$ 0.02	$ (0.07)
Amortization, Total		$ 3,987,003	$ 10,471,973
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years
Customer Relationships [Member] | Intangible Assets, Amortization Period [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 2,124,125
Earnings Per Share, Basic and Diluted, Total (in dollars per share)	$ 0.09

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The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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