Note 18. Commitments and Contingencies Litigation: We are a party to legal proceedings and claims which arise during the ordinary course of business. We review our legal proceedings and claims, regulatory reviews and inspections, and other legal matters on an ongoing basis and follow appropriate accounting guidance when making accrual and disclosure decisions. We establish accruals for those contingencies when the incurrence of a loss is probable and can be reasonably estimated, and we disclose the amount accrued and the amount of a reasonably possible loss in excess of the amount accrued, if such disclosure is necessary for our financial statements to not be misleading. We do not record an accrual when the likelihood of loss being incurred is probable, but the amount cannot be reasonably estimated, or when the loss is believed to be only reasonably possible or remote, although disclosures will be made for material matters as required by ASC 450-20, Contingencies - Loss Contingencies . Our assessment of whether a loss is reasonably possible or probable is based on our assessment and consultation with legal counsel regarding the ultimate outcome of the matter following all appeals. As of April 28, 2018 , we recorded a liability and related other receivable of $1,904 for a net claim from a customer against work performed by one of our subcontractors during installation which damaged our customer's property. The amount recorded is for probable and reasonably estimated cost to remediate the damage. Our subcontractor has full insurance for such matters, we have claims to a performance bond as additional collateral, and we carry insurance to cover such matters. In the opinion of management, the ultimate liability of this claim is not expected to have a material effect on our financial position, liquidity or capital resources. As of April 28, 2018, a customer was withholding $2,224 of payment claiming we did not perform to the customer's specifications. We believe we have performed to the agreed-upon written specificati