Note 10 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	201 7					201 6
				Weighted					Weighted
				Average					Average
	Option			Exercise		Option			Exercise
	Shares			Price		Shares			Price
Outstanding at January 1		56,400		$	5.14		68,400		$	5.17
Granted		-			-		-			-
Forfeited or cancelled		(12,000	)		5.14		(12,000	)		5.30
Exercised		(44,400	)		5.14		-			-
Outstanding at December 31		-		$	-		56,400		$	5.14
Exercisable at end of year		-		$	-		56,400		$	5.14
Weighted-average fair value of options granted during year		n/a					n/a

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

	Shares			Grant Fair Value
Balance, January 1, 2017		65,150		$	8.03
Granted		9,005			8.05
Forfeited		(4,054	)		8.97
Vested		(33,300	)		8.97
Balance, December 31, 2017		36,801		$	8.03
Balance, January 1, 2018		36,801		$	8.03
Granted		654,000			7.39
Vested		(33,084	)		7.94
Balance, December 31, 2018		657,717		$	7.39

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

2019	$	714,754
2020		711,733
2021		699,088
2022		679,880
2023		509,911

Class of Treasury Stock [Table Text Block]

Year ended December 31	Total shares repurchased		Average price per share
2018		243,387		$6.79
2017		-		-
2016		520,482		$7.06