Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share
Stock options excluded	967,050	700,598
Net Income
Net income	$ 1,789us-gaap_ProfitLoss	$ 2,632us-gaap_ProfitLoss
Basic income available to common stockholders	1,789	2,632
Diluted income available to common stockholders plus assumed conversions	$ 1,789	$ 2,632
Shares
Basic income available to common stockholders (in shares)	20,091,924	17,041,594
Effect of dilutive stock options and warrants (in shares)	290,908	334,407
Diluted income available to common stockholders plus assumed conversions (in shares)	20,382,832	17,376,001
Per Share Amount
Basic income available to common stockholders (in dollars per share)	$ 0.09us-gaap_EarningsPerShareBasic	$ 0.15us-gaap_EarningsPerShareBasic
Diluted income available to common stockholders plus assumed conversions (in dollars per share)	$ 0.09us-gaap_EarningsPerShareDiluted	$ 0.15us-gaap_EarningsPerShareDiluted

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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