Listing of Corporate Headquarters for Sale	3 Months Ended
Mar. 31, 2013
Listing of Corporate Headquarters for Sale [Abstract]
Listing of Corporate Headquarters for Sale	11. Listing of Corporate Headquarters for Sale In April, 2012, our Board of Directors approved the listing for sale of our corporate headquarters building located in Spokane, Washington. We intend to relocate our headquarters to a new leased location also in Spokane upon sale. We will continue to classify the building as an asset held for use until the sale is probable within 12 months and it becomes unlikely that significant changes to the plan will be made. Dependent on the offers received for the building, our Board of Directors may elect not to sell the building and the planned sale could be withdrawn. The initial listing price for the building itself and underlying land is $13.3 million. The asset has a total net carrying value, including all related assets, of approximately $15.7 million and is recoverable as an asset held for use. However, we will continue to reassess the fair value of the building at each reporting period to determine whether the building qualifies as an asset held for sale and if the carrying value is recoverable as the proposed sale process continues. If the carrying value is not deemed to be recoverable based on current market conditions, we may be required to record impairment charges for these assets in the future.

11. Listing of Corporate Headquarters for Sale

In April, 2012, our Board of Directors approved the listing for sale of our corporate headquarters building located in Spokane, Washington. We intend to relocate our headquarters to a new leased location also in Spokane upon sale. We will continue to classify the building as an asset held for use until the sale is probable within 12 months and it becomes unlikely that significant changes to the plan will be made. Dependent on the offers received for the building, our Board of Directors may elect not to sell the building and the planned sale could be withdrawn. The initial listing price for the building itself and underlying land is $13.3 million. The asset has a total net carrying value, including all related assets, of approximately $15.7 million and is recoverable as an asset held for use. However, we will continue to reassess the fair value of the building at each reporting period to determine whether the building qualifies as an asset held for sale and if the carrying value is recoverable as the proposed sale process continues. If the carrying value is not deemed to be recoverable based on current market conditions, we may be required to record impairment charges for these assets in the future.