CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in-Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2013	$ 86,762	$ 8	$ 76,334	$ 11,990	$ (1,570)
Beginning balance (in shares) at Dec. 31, 2013		15,467,028
Net income	8,394			8,394
Other comprehensive income (loss)	2,470				2,470
Issuance/Vesting of restricted stock (in shares)		6,444
Exercise of options	$ 949		949
Exercise of options (in shares)	169,732	169,732
Payout of contingent consideration	$ 354		354
Payout of contingent consideration (in shares)		47,160
Stock-based compensation	451		451
Tax windfall from exercise of stock options	116		116
Ending balance at Dec. 31, 2014	99,496	$ 8	78,204	20,384	900
Ending balance (in shares) at Dec. 31, 2014		15,690,364
Net income	13,378			13,378
Other comprehensive income (loss)	(2,204)				(2,204)
Issuance/Vesting of restricted stock (in shares)		21,524
Exercise of options	$ 405		405
Exercise of options (in shares)	62,614	62,614
Payout of contingent consideration	$ 452		452
Payout of contingent consideration (in shares)		62,128
Stock-based compensation	613		613
Issuance/Sale of common stock	5,000		5,000
Issuance/Sale of common stock (in shares)		544,070
Stock issued in acquisition	11,806	$ 1	11,805
Stock issued in acquisition (in shares)		1,242,690
Public offering	130,758	$ 7	130,751
Public offering (in shares)		14,337,662
Tax windfall from exercise of stock options	32		32
Ending balance at Dec. 31, 2015	259,736	$ 16	227,262	33,762	(1,304)
Ending balance (in shares) at Dec. 31, 2015		31,961,052
Net income	23,303			23,303
Other comprehensive income (loss)	(3,941)				(3,941)
Issuance/Vesting of restricted stock (in shares)		67,988
Exercise of options	$ 4,267		4,267
Exercise of options (in shares)	690,592	690,592
Stock-based compensation	$ 899		899
Ending balance at Dec. 31, 2016	$ 284,264	$ 16	$ 232,428	$ 57,065	$ (5,245)
Ending balance (in shares) at Dec. 31, 2016		32,719,632