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Note 9 - Stock-based Compensation Expense (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

2001 Non-Qualified Stock Option Plan
		Beginning				Granted				Exercised				Canceled				Ending
		Balance				During				During				During				Balance
		Outstanding				Period				Period				Period				Outstanding				Exercisable
Number of shares			7,000				-				-				(7,000	)			-				-
Weighted average exercise price per share		$	7.90				-				-			$	7.90				-				-

2007 Share Incentive Plan
		Beginning				Granted				Exercised				Canceled				Ending
		Balance				During				During				During				Balance
		Outstanding				Period				Period				Period				Outstanding				Exercisable
Number of shares			345,000				-				-				-				345,000				305,000
Weighted average exercise price per share		$	12.33				-				-				-			$	12.33			$	12.33

2016 Share Incentive Plan
		Beginning				Granted				Exercised				Canceled				Ending
		Balance				During				During				During				Balance
		Outstanding				Period				Period				Period				Outstanding				Exercisable
Number of shares			65,000				-				-				-				65,000				65,000
Weighted average exercise price per share		$	5.94				-				-				-			$	5.94			$	5.94

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

					Options Outstanding																Options Exercisable
									Weighted				Weighted												Weighted
									Average				Average												Average
Exercise					Number				Remaining				Exercise				Intrinsic				Number				Exercise				Intrinsic
Price Range					Outstanding				Contractual				Price				Value				Exercisable				Price				Value
$4.00	-	7.00				45,000				.0			$	5.00			$	0				45,000			$	5.00			$	0
$7.01	-	10.00				20,000				.0			$	8.07			$	0				20,000			$	8.07			$	0
$10.01	-	12.00				220,000				.1			$	10.81			$	0				180,000			$	11.05			$	0
$12.01	-	15.00				125,000				1.5			$	15.00			$	0				125,000			$	15.00			$	0

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

						Weighted
						Average Grant
		Shares of				Date Fair
		Restricted Stock				Value
Unvested outstanding at December 31, 2020			0			$	0
Granted			42,800			$	4.65
Vested			0			$	0
Forfeited/Cancelled			0			$	0
Unvested outstanding at March 31, 2021			42,800			$	4.65

						Weighted
		Shares of				Average Grant
		Restricted				Date Fair
		Stock Units				Value
Unvested outstanding at December 31, 2020			8,750			$	5.00
Granted			2,333			$	5.36
Vested			(5,583	)		$	5.32
Forfeited/Cancelled			(-	)		$	-
Unvested outstanding at March 31, 2021			5,500			$	4.83

X

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

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-Section 50
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