Note 15 - Acquisitions (Details Textual) - USD ($)			12 Months Ended
Jul. 05, 2018	Jul. 01, 2018	Dec. 31, 2019	Dec. 31, 2018
Payments to Acquire Businesses, Gross			$ 50,001	$ 11,209,583
Business Combination, Acquisition Related Costs			$ 74,117	$ 268,607
CAD Enterprises, Inc. [Member]
Business Combination, Consideration Transferred, Total	$ 21,000,000	$ 21,000,000
Payments to Acquire Businesses, Gross	$ 12,000,000	$ 12,000,000

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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