A state bank or trust company shall maintain reserves in the form of liquid assets at a level reasonably necessary to meet anticipated withdrawals, commitments, and loan demand. Reserves shall be in cash, cash items in process of collection, short term obligations of or demand balances with other insured financial institutions in the United States and its territories, or short term, direct obligations of or guaranteed by the United States government. Obligations must mature within one year to be considered short term. The commissioner may prescribe the required amount of reserves in relation to liabilities for any individual state bank or trust company from time to time based upon examination findings or other reports relating to the bank or trust company that are available to the commissioner. Reserves for an individual state bank or trust company as prescribed by the commissioner pursuant to this section shall be enforced in accordance with sections 46.24 and 46.30 to 46.33.