Weighted average common shares outstanding - basic

12,189,761

11,886,005

12,150,240

11,294,306

Potentially dilutive securities:

Unvested shares of restricted stock and employee stock options

61,951

326,312

96,523

371,544

Weighted average common shares and common share equivalents outstanding - diluted

12,251,712

12,212,317

12,246,763

11,665,850

Average number of potentially dilutive securities excluded from calculation because their effect was anti-dilutive during the period

734,574

107,666

589,478

119,585