Note 17 - Shareholders' Equity and Stock Plans (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Share-based Compensation, Stock Options, Activity [Table Text Block]

				Weighted				Weighted
				Average		Aggregate		Average
	Number			Exercise		Intrinsic		Remaining
	of Shares			Price		Value		Contractual Term
Options outstanding December 31, 2016		188,900		$	5.08	$	834,625		5.66
Exercised		(51,900	)	$	4.73	$	245,450		4.42
Forfeited		(2,500	)	$	4.05	$	n/a		n/a
Options outstanding December 31, 2017		134,500		$	5.24	$	704,350		4.76
Exercised		(37,100	)	$	5.82	$	215,685		2.96
Forfeited		—		$	—	$	n/a		n/a
Options outstanding December 31, 2018		97,400		$	5.02	$	488,665		4.11
Exercisable at December 31, 2018		93,400		$	4.98	$	465,345		4.03

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

	For the Years Ended December 31,
(Amounts in thousands, except per share information)	2018		2017		2016
Stock option expense	$	8	$	23	$	24

	At December 31,
	2018		2017		2016
Unrecognized compensation costs related to non-vested stock option payments	$	—	$	17	$	29
Number of exercisable shares		93		119		157

	For the Years Ended December 31,
(Amounts in thousands, except per share information)	2018		2017		2016
Restricted stock compensation expense	$	185	$	196	$	215
Restricted stock awards weighted average grant date fair value per share	$	11.50	$	10.35	$	5.74

	At December 31,
	2018		2017		2016
Unrecognized compensation costs related to non-vested restricted stock payments	$	470	$	414	$	205

			Weighted		Stock
			Average		Grant
	Number		Grant		Compensation
	of Shares		Price		Expense
Shares granted during the year ended December 31, 2018		4,653	$	11.50	$	53,510
Shares granted during the year ended December 31, 2017		4,868	$	10.05	$	48,923

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

				Weighted				Weighted
				Average		Aggregate		Average
	Number			Grant		Intrinsic		Remaining
	of Shares			Price		Value		Contractual Term
Unvested restricted shares December 31, 2016		67,180		$	5.84	$	638,210		1.38
Granted		45,070		$	10.35	$	466,328		1.32
Vested		(37,761	)	$	5.79	$	218,600		n/a
Unvested restricted shares December 31, 2017		74,489		$	8.60	$	640,255		1.03
Granted		29,913		$	11.50	$	344,000		1.07
Vested		(37,634	)	$	7.53	$	283,433		n/a
Unvested restricted shares December 31, 2018		66,768		$	10.50	$	700,820		0.97

Dividends Declared [Table Text Block]

	For the Years Ended December 31,
(Amounts in thousands, except per share information)	2018		2017		2016
Cash dividends paid to common shareholders	$	2,274	$	1,776	$	1,603
Cash dividends paid per common share	$	0.14	$	0.12	$	0.12