Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

(dollars in thousands, except per share amounts)	201 7		201 6		201 5
Net income - basic and diluted	$	8,905	$	4,945	$	2,433
Weighted average shares outstanding		56,933		39,281		37,818
Net income per share – basic	$	0.16	$	0.13	$	0.06
Weighted average shares outstanding (including dilutive CSEs)		58,250		39,865		38,094
Net income per share – diluted	$	0.15	$	0.12	$	0.06

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

(in thousands)	201 7		201 6		201 5
Anti-dilutive securities
Share based compensation awards		1,689		1,747		1,671
Convertible securities		1,625		1,662		1,662
Total anti-dilutive securities		3,314		3,409		3,333