Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Preferred Stock [Member]	Common Stock [Member]	Surplus [Member]	Unearned ESOP Shares [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2011	$ 32,000	$ 1,062	$ 98,842	$ 0	$ 7,752	$ (3,286)	$ 25,467	$ 161,837
Balance (in shares) at Dec. 31, 2011	32,000	10,615,983
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	0	0	0	0	9,642	9,642
Issuance of common stock for acquisitions	0	76	11,454	0	0	0	0	11,530
Issuance of common stock for acquisitions (in shares)	0	756,511
Issuance of Series C preferred stock for acquisitions	9,997	0	0	0	0	0	0	9,997
Issuance of Series C preferred stock for acquisitions (in shares)	99,971	0
Dividends on Series B Preferred Stock	0	0	0	0	0	0	(1,547)	(1,547)
Dividends on common stock	0	0	0	0	0	0	(2,933)	(2,933)
Exercise of stock options	0	1	99	0	0	0	0	100
Exercise of stock options (in shares)	0	14,117
Tax benefit resulting from exercise of stock options, net adjustment	0	0	1	0	0	0	0	1
Stock option and restricted stock compensation expense	0	0	207	0	0	0	0	207
Change in accumulated other comprehensive income	0	0	0	0	407	0	0	407
Balance at Dec. 31, 2012	41,997	1,139	110,603	0	8,159	(3,286)	30,629	189,241
Balance (in shares) at Dec. 31, 2012	131,971	11,386,611
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	0	0	0	0	14,176	14,176
Dividends on Series B Preferred Stock	0	0	0	0	0	0	(931)	(931)
Dividends on Series C Preferred Stock	0	0	0	0	0	0	(400)	(400)
Dividends on common stock	0	0	0	0	0	0	(3,488)	(3,488)
Exercise of stock options	0	1	68	0	0	0	0	69
Exercise of stock options (in shares)	0	6,155
Tax benefit resulting from exercise of stock options, net adjustment	0	0	4	0	0	0	0	4
Vested restricted stock	0	1	(1)	0	0	0	0	0
Vested restricted stock (in shares)	0	14,430
Tax benefit resulting from issuance of restricted stock	0	0	14	0	0	0	0	14
Stock option and restricted stock compensation expense	0	0	329	0	0	0	0	329
Change in accumulated other comprehensive income	0	0	0	0	(8,265)	0	0	(8,265)
Balance at Dec. 31, 2013	41,997	1,141	111,017	0	(106)	(3,286)	39,986	190,749
Balance (in shares) at Dec. 31, 2013	131,971	11,407,196
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	0	0	0	0	19,110	19,110
Dividends on Series B Preferred Stock	0	0	0	0	0	0	(320)	(320)
Dividends on Series C Preferred Stock	0	0	0	0	0	0	(378)	(378)
Dividends on common stock	0	0	0	0	0	0	(3,959)	(3,959)
Conversion of Series C preferred stock to common stock	(629)	3	626	0			0	0
Conversion of Series C preferred stock to common stock (in shares)	(6,291)	34,947
Treasury stock acquired at cost				0	0	(9)	0	(9)
Exercise of stock options	0	5	638	0	0	0	0	643
Exercise of stock options (in shares)	0	49,560
Tax benefit resulting from exercise of stock options, net adjustment	0	0	21	0	0	0	0	21
Increase in ESOP obligation, net of repayments	0			(250)	0	0	0	(250)
Stock option and restricted stock compensation expense	0	0	442	0	0	0	0	442
Change in accumulated other comprehensive income	0	0	0	0	2,963	0	0	2,963
Balance at Dec. 31, 2014	$ 41,368	$ 1,149	$ 112,744	$ (250)	$ 2,857	$ (3,295)	$ 54,439	$ 209,012
Balance (in shares) at Dec. 31, 2014	125,680	11,491,703