CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY - UNAUDITED - USD ($) $ in Thousands	Common Stock	Additional Paid-in-Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Beginning balance at Dec. 31, 2018	$ 44	$ 431,832	$ 128,461	$ (1,153)	$ 559,184
Beginning balance (in shares) at Dec. 31, 2018	44,496,007
Net income			23,669		23,669
Other comprehensive income (loss)				7,212	7,212
Stock based compensation		989			989
Cash dividend			(4,462)		(4,462)
Exercise of options		135			135
Exercise of options (in shares)	18,000
Stock grants - vesting of Restricted Stock Units	$ 1	(1)
Stock grants - vesting of Restricted Stock Units (in shares)	121,640
Stock repurchase		(24)			(24)
Stock repurchase (in shares)	(1,800)
Ending balance at Jun. 30, 2019	$ 45	432,931	147,668	6,059	586,703
Ending balance (in shares) at Jun. 30, 2019	44,633,847
Beginning balance at Dec. 31, 2019	$ 45	433,775	175,773	4,276	613,869
Beginning balance (in shares) at Dec. 31, 2019	44,670,743
Net income			31,065		31,065
Other comprehensive income (loss)				1,027	1,027
Stock based compensation		1,195			1,195
Cash dividend			(6,256)		(6,256)
Exercise of options		645			645
Exercise of options (in shares)	86,000
Stock grants - vesting of Restricted Stock Units (in shares)	92,915
Stock repurchase		(2,824)			(2,824)
Stock repurchase (in shares)	(224,334)
Ending balance at Jun. 30, 2020	$ 45	$ 432,791	$ 200,582	$ 5,303	$ 638,721
Ending balance (in shares) at Jun. 30, 2020	44,625,324