Note 8 - Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 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 June 30, 2022		4,268,221		2.18		1.00		130,704

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

	June 30, 2022			June 30, 2021
Shares-to-be-issued, outstanding January 1, 2022 and 2021, respectively		2,066,343			2,428,329
Granted in current period		108,148			33,238
Issued in current period		(147,338	)		(53,416	)
Shares-to be issued outstanding June 30, 2022 and 2021, respectively		2,027,153			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		2.48		-
Exercised during 2022		-		-		-		-
Forfeited or expired during 2022		-		-		-		-
Options outstanding June 30, 2022		3,059,989		2.29		6.88		-
Exercisable, June 30, 2022		994,914		2.18		5.53		-

	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 June 30, 2022		83,330		1.85		2.83		7,471
Exercisable, June 30, 2022		69,442		1.68		2.62		7,471

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		975,148			0.86
Vested		(224,850	)		-
Cancelled		(92,017	)		-
Non-vested as June 30, 2022		754,838			1.20