Idaho State Statutes - Idaho Attorney Directory

(a) The money in which the
parties to a transaction have agreed that payment is to be made is the proper
money of the claim for payment.
(b) If the parties to a transaction have not otherwise agreed, the proper
money of the claim, as in each case may be appropriate, is the money:
(1) Regularly used between the parties as a matter of usage or course of
dealing;
(2) Used at the time of a transaction in international trade, by trade
usage or common practice, for valuing or settling transactions in the
particular commodity or service involved; or
(3) In which the loss was ultimately felt or will be incurred by the
party claimant.

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