Chapter 12 of the Bankruptcy Code is designed for "family farmers" or "family fishermen" with "regular annual income." It enables financially distressed family farmers and fishermen to propose and carry out a plan to repay all or part of their debts. Under chapter 12, debtors propose a repayment plan to make installments to creditors over three to five years. Generally, the plan must provide for payments over three years unless the court approves a longer period "for cause."