There shall be 2 classes of members in the corporation with voting rights specified in the articles of incorporation.

   (1)   Stockholder members include individuals, corporations and organizations who qualify by the purchase of common stock.

   (2)   Nonstockholder members include banks, savings banks, savings and loan associations, trust companies and insurers who qualify by making application to lend funds to the corporation upon call.

      (a)    Each nonstockholder member shall establish a line of credit to the corporation as determined in the articles of incorporation.

      (b)    All calls of funds which nonstockholder members are committed to lend to the corporation shall be prorated by the corporation among the nonstockholder members in the same proportion that the individual lines of credit bear to the aggregate line of credit.

      (c)    Upon written notice given 60 days in advance, a nonstockholder member of the corporation may withdraw from such membership at the expiration date of such notice and after said expiration date shall cease to exercise any of the powers and privileges incidental to such membership and shall be free of any obligations in connection therewith except those obligations which have accrued or for which commitments have been made before said expiration date.

      (d)    Nonstockholder members do not assume any liability for the debts of the corporation.

      (e)    Nonstockholder members shall not share in any surplus of the corporation in excess of the obligations due such nonstockholder members.

      (f)    Upon dissolution of a corporation organized under this chapter, obligations due the nonstockholder members are to be paid in full before any payments are made to the stockholder members.