Most Idaho employers don't comply with a law requiring them to report new hires to the state Department of Labor within 20 days, making it harder for officials to track things like overpaid unemployment benefits and deadbeat parents who owe child support. Only about 30 percent of employers comply with the 1997 state law that was passed to help Idaho better identify employees who owe child support so their wages can be garnished, the Labor Department said in a statement Tuesday. The law also helps the state track cases where people keep collecting unemployment benefits after returning to work. The employers that do comply with the law are among Idaho's largest, accounting for about two-thirds of the state's total workforce. The Labor Department is working to boost compliance among the rest of the state's employers as part of a long-term plan to crack down on unemployment benefit fraud and overpayments. A federal audit in September found that Idaho improperly doled out about $82 million in unemployment benefits during a three-year period.