Note 8 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

	Warrant shares outstanding		Weighted Average exercise price		Weighted Average remaining life		Intrinsic value
Outstanding at January 1, 2022		4,268,221		2.18		1.50	$	1,187,546
Issued		-		-		-		-
Exercised		-		-		-		-
Outstanding and exercisable at March 31, 2022		4,268,221		2.18		1.25	$	580,142

Deferred Compensation Arrangement with Individual, Share-based Payments [Table Text Block]

	March 31, 2022		March 31, 2021
Shares-to-be-issued, outstanding January 1, 2022 and 2021, respectively		2,066,343		2,440,878
Granted in current period		108,148		33,238
Issued in current period		-		(65,965	)
Shares-to be issued outstanding March 31, 2022 and 2021, respectively		2,174,491		2,408,151

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Options		Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Options outstanding January 1, 2022		2,843,693		2.39		7.69		49,246
Granted during 2022		216,296		1.52		2.98		-
Exercised during 2022		-		-		-		-
Forfeited or expired during 2022		-		-		-		-
Options outstanding March 31, 2022		3,059,989		2.37		7.36		-
Exercisable, March 31, 2022		594,914		1.98		3.80		-

	Number of Options		Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Options outstanding January 1, 2022		83,330		1.85		3.33		49,748
Granted during 2022		-		-		-		-
Exercised during 2022		-		-		-		-
Options outstanding March 31, 2022		83,330		1.85		3.08		22,585
Exercisable, March 31, 2022		63,883		1.68		2.85		22,582

Restricted Stock [Member]

Notes Tables

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

	Number of Shares			Weighted Average Grant-Date Fair Value per Award
Non-vested as January 1, 2022		96,557			2.33
Granted		75,758			1.32
Vested		-
Cancelled		(41,499	)
Non-vested as March 31, 2022		130,816			1.90