Note 13 - Stock Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Number of Phantom Shares
Outstanding—beginning		87,636
Granted—arising from dividends declared during the year		1,397
Forfeited—due to departure from Protexure		(12,630	)
Outstanding—ending		76,403

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

	Vested Shares		Weighted Average Exercise Price Per Share		Non-vested Shares			Weighted Average Exercise Price Per Share		Total Shares			Weighted Average Exercise Price Per Share
Outstanding—January 1, 2019		7,000	$	27.99		40,000		$	28.71		47,000		$	28.60
Granted		—		—		—			—		—			—
Forfeited		—		—		(2,000	)		30.14		(2,000	)		30.14
Exercised		—		—		—			—		—			—
Vested		9,400		28.60		(9,400	)		28.60		—			—
Outstanding—December 31, 201 9		16,400	$	28.34		28,600		$	28.65		45,000		$	28.54
Options exercisable at year end		—		—		—			—		—			—
Weighted average fair value of options per share granted during the year		—		—	$	—			—	$	—			—
Remaining contractual life (years)		3.2				3.3					3.3

	Vested Shares		Weighted Average Exercise Price Per Share		Non-vested Shares			Weighted Average Exercise Price Per Share		Total Shares		Weighted Average Exercise Price Per Share
Outstanding—January 1, 2018		—		—		35,000		$	27.99		35,000	$	27.99
Granted		—		—		12,000			30.40		12,000		30.40
Forfeited		—		—		—			—		—		—
Exercised		—		—		—			—		—		—
Vested		7,000		27.99		(7,000	)		27.99		—		—
Outstanding—December 31, 2018		7,000	$	27.99		40,000		$	28.71		47,000	$	28.60
Options exercisable at year end		—		—		—			—		—		—
Weighted average fair value of options per share granted during the year		—		—	$	—			—	$	—		—
Remaining contractual life (years)		4.0				4.4					4.4

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	201 9 Option Grants		2018 Option Grants			2017 Option Grants
Number of options		—		12,000			35,000
Weighted fair value per share		—	$	30.40		$	27.99
Expected life (years)		—		5			5
Expected volatility		—		16.4	%		17.2	%
Risk-free interest rate		—		2.61	%		1.62	%

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

		Options Outstanding						Options Exercisable
Range of exercise price		Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years )
$	27.99		21,000		3.0	$	27.99		14,000	$	27.99		3.0
$	30.58		5,600		4.0	$	30.58		1,400	$	30.58		4.0
$	30.14		2,000		4.8	$	30.14		1,000	$	30.14		4.8

		Options Outstanding						Options Exercisable
Range of exercise price		Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)
$	27.99		28,000		4.0	$	27.99		7,000	$	27.99		4.0
$	30.58		7,000		5.0	$	30.58		—	$	—		—
$	30.14		5,000		5.8	$	30.14		—	$	—		—