Note 19 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

Grant date stock price and exercise price	$	14.71
Dividend yield		0.86	%
Expected volatility		25.10	%
Risk-free interest rate		1.84	%
Expected life in years		6

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

	For the Year Ended December 31, 2019
				Average
			Weighted-	Remaining		Aggregate
			Average	Contractual		Intrinsic
	Shares		Exercise Price	Term (years)		Value
Outstanding, December 31, 2018	164,410	$	14.68	5.8	$	37,316
Granted	2,750		14.71
Exercised	(8,460)		10.39
Forfeited or expired	(12,400)		14.90
Outstanding, December 31, 2019	146,300	$	14.92	5.0	$	53,166
Exercisable, December 31, 2019	57,910	$	14.91	4.9	$	21,131

Share-based Compensation, Additional Disclosures on Grants [Table Text Block]

	Year Ended December 31,
	2019		2018
Intrinsic value of options exercised	$	42,616	$	89,080
Cash received from option exercises	$	70,035	$	149,228
Tax benefit from option exercises	$	10,708	$	24,866
Total weighted average fair value of options granted	$	10,230	$	20,200

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

			Weighted		Average
			Average		Remaining
			Grant Date		Contractual
	Shares		Price		Term (years)
	For the Year Ended December 31, 2019
Outstanding, December 31, 2018	49,829		$	14.90	4.0
Granted	4,000		$	14.76
Vested	(11,985	)		14.90
Forfeited or expired	(1,800	)		14.90
Outstanding, December 31, 2019	40,044		$	14.89	3.4