In Woodland Hills Educ. Ass'n, PSEA/NEA v. Woodland Hills School District, 96 Pa. Commw. 502, 508 A.2d 365 (Pa. Cmwlth. 1986), a school district continued paying premiums for fringe benefits including medical coverage and life insurance during a protracted thirty-seven-day strike in the regular school year from September to October 1982. The issue was whether the school district or the teachers had to absorb the monthly premium costs for fringe benefits during the strike. Although the school district ultimately provided 180 days of instruction, the teachers worked only 183 days rather than 186 days called for in their contract. The Court affirmed the trial court's ruling that the union must reimburse the school district for 3/186 of the total annual premiums (compensation) that the teachers had not earned.