Earnings Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basic earnings per share:
Weighted-average common shares outstanding		29,587,095	29,535,915	29,573,881	29,509,672
Net income	$ 5,457	$ 5,457	$ 3,845	$ 10,029	$ 7,167
Basic earnings per share (in dollars per share)	$ 0.19	$ 0.19	$ 0.13	$ 0.34	$ 0.24
Diluted earnings per share:
Weighted-average common shares outstanding		29,587,095	29,535,915	29,573,881	29,509,672
Diluted average common shares outstanding		30,015,905	29,841,239	29,976,544	29,823,504
Diluted earnings per share (in dollars per share)	$ 0.18	$ 0.18	$ 0.13	$ 0.33	$ 0.24
Antidilutive options and warrants
Diluted earnings per share:
Dilutive effect of nonvested restricted awards (in shares)		2,546		2,431
One 10 year warrant	900,839		977,839	900,839	977,839
Warrants
Diluted earnings per share:
One 10 year warrant	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)		426,264	305,324	400,232	313,832

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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