A person who, without just cause, fails or refuses to attend and testify or to answer a lawful inquiry or to produce books, papers, correspondence, memoranda, and other records, if it is in the person's power to do so, in obedience to a subpoena of the department, an appeal tribunal, or an authorized representative of any of them, upon conviction, is punishable by a fine of not more than $200, or by imprisonment for not more than 60 days, or by both. Each day the failure or refusal continues is a separate offense.