The FMLA doesn't even apply if the employer has less than 50 employees. Whatever they are doing may be out of the goodness of their heart rather than it being required by law.
The FMLA requires employers of 50 or more employees (and all public agencies) to provide eligible employees up to 12 weeks of unpaid, job-protected leave each year for the birth and care of a newborn child, for placement with the employee of a child for adoption or foster care, or for the serious illness of the employee or of the employee’s child, spouse, or parent.
Link for those interested:
http://www.dol.gov/whd/regs/compliance/NewBus3.pdf