Seasons, Inc. has the following plant, property, and equipment assets on its balance sheet for 2021 and 2020: ($ thousands) 2021 2020 Land $ 4,200 $ 4,000 Buildings 10,400 9,800 Machinery and equipment 6,500 6,800 21,100 20,600 Less Accumulated depreciation 7,200 6,000 Total $ 13,900 $ 14,600 Depreciation expense for 2021 was $1,400. During 2021, Season's Inc., did not make any machinery and equipment purchases and did not sell any buildings. The cash flow from machinery and equipment sales during 2021 was $500. What was Season's gain or loss on machinery and equipment sales during 2021 (enter a gain as a positive number and a loss as a negative numbers)