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Earnings Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Basic earnings per share:
Weighted-average common shares outstanding	29,554,716	29,478,429	29,524,796	29,474,833
Net income	$ 3,499	$ 3,924	$ 10,666	$ 11,552
Preferred stock dividends and accretion		339		1,873
Preferred stock dividends and accretion of discount		339		1,873
Net income available to common stockholders	$ 3,499	$ 3,585	$ 10,666	$ 9,679
Basic earnings per share (in dollars per share)	$ 0.12	$ 0.12	$ 0.36	$ 0.33
Diluted earnings per share:
Weighted-average common shares outstanding	29,554,716	29,478,429	29,524,796	29,474,833
Diluted average common shares outstanding	29,838,182	29,746,429	29,828,430	29,724,234
Net earnings available to common stockholders	$ 3,499	$ 3,585	$ 10,666	$ 9,679
Diluted earnings per share (in dollars per share)	$ 0.12	$ 0.12	$ 0.36	$ 0.33
Number of antidilutive options and warrants excluded from the diluted earnings per share calculation (in shares)	1,238		413
Antidilutive options and warrants
Diluted earnings per share:
Number of antidilutive options and warrants excluded from the diluted earnings per share calculation (in shares)	967,339	1,044,339	977,426	1,044,339
Warrants
Diluted earnings per share:
Number of antidilutive options and warrants excluded from the diluted earnings per share calculation (in shares)			815,339	815,339
Warrants, exercise price (in dollars per share)	$ 13.43	$ 13.43	$ 13.43	$ 13.43
Restricted stock and restricted stock units
Diluted earnings per share:
Dilutive effect of nonvested restricted awards (in shares)	282,228	268,000	303,221	249,401

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