You are referring to the Small Business Health Care Tax Credit. This credit began in 2010. This credit is allowed for a small employer to purchase health insurance for all your employees. This credit was created to stimulate small employers to offer health insurance coverage initially, or to maintain coverage they already have. According to your statement, you are a qualified small business employer since you have less than 25 employees. If the employees have annual full-time equivalent wages that average no more than $50,000 per full-time employee.
For tax years 2012 and 2013 the maximum credit is 35% of premiums paid. By 2014, the maximum credit increases to 50% of premiums paid.