Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

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

	2020			2019
Dividend yield(1)		0.0%			0.0%
Expected volatility(2)		28.61%			28.81%
Risk-free interest rate(3)	0.36%	to	1.22%	1.42%	to	2.78%
Expected life(4) (in years)		6.25%			6.25%
Assumed forfeiture rate(5)		5.0%			4.0%

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

	2020		2019
Stock based compensation expense recognized	$	1,538,000	$	2,005,000
Number of unvested stock options		2,609,200		2,361,765
Fair value of unvested stock options	$	4,915,841	$	6,095,468
Amount remaining to be recognized as expense	$	3,121,499	$	4,183,148

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020		2019
Net income (loss) - basic and diluted	$	(966	)	$	(1,822	)	$	953	$	(1,015	)
Weighted average shares outstanding		58,853			58,843			58,851		58,830
Net income per share – basic	$	(0.02	)	$	(0.03	)	$	0.02	$	(0.02	)
Weighted average shares outstanding (including dilutive CSEs)		58,853			58,843			60,751		58,830
Net income per share – diluted	$	(0.02	)	$	(0.03	)	$	0.02	$	(0.02	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

(in thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Anti-dilutive securities
Share based compensation awards		5,994		5,008		5,945		5,008