Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2015	$ 108,586	$ 1,610	$ 8,577	$ 95,277	$ 8,036	$ (4,914)
Beginning balance, shares at Dec. 31, 2015			8,577,051
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations	(16)		$ 107	(123)
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations, shares			106,548
Stock-based compensation expense	643			643
Excess tax benefit from stock compensation	29			29
Issuance of common stock	21,928		$ 1,688	20,240
Issuance of common stock, shares			1,688,049
Conversion of preferred stock		(732)	$ 732
Conversion of preferred stock, shares			731,707
Exercise of common stock warrants	165		$ 88	77
Exercise of common stock warrants, shares			87,666
Net income	6,169				6,169
Other comprehensive income	923					923
Ending balance at Sep. 30, 2016	138,427	878	$ 11,192	116,143	14,205	(3,991)
Ending balance, shares at Sep. 30, 2016			11,191,021
Beginning balance at Dec. 31, 2016	139,207	878	$ 11,205	116,143	17,132	(6,151)
Beginning balance, shares at Dec. 31, 2016			11,204,515
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations	(264)		$ 21	(285)
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations, shares			21,480
Stock-based compensation expense	771			771
Exercise of employee common stock options, net of withholdings to satisfy employee tax obligations	644		$ 72	572
Exercise of employee common stock options, net of withholdings to satisfy employee tax obligations, shares			71,517
Exercise of common stock warrants	465		$ 49	416
Exercise of common stock warrants, shares			48,986
Net income	1,409				1,409
Other comprehensive income	1,972					1,972
Ending balance at Sep. 30, 2017	$ 144,204	$ 878	$ 11,347	$ 117,617	$ 18,541	$ (4,179)
Ending balance, shares at Sep. 30, 2017			11,346,498