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Property and Equipment
 3 Months Ended
Mar. 31, 2022
Property, Plant and Equipment [Abstract]  
Property and Equipment Property and Equipment
Property and equipment are as follows (in thousands):
March 31, 2022December 31, 2021
Land$886 $886 
Land improvements520 520 
Buildings and leasehold improvements5,356 5,473 
Machinery and equipment6,819 6,843 
Furniture and fixtures540 620 
Transportation equipment878 878 
Computer equipment and software1,175 1,176 
   Property and equipment16,174 16,396 
Less accumulated depreciation(11,095)(11,100)
Property and equipment, net$5,079 $5,296 
Depreciation expense totaled $0.2 million and $0.3 million for the three months ended March 31, 2022 and 2021, respectively.
In the third quarter of 2021, the Company committed to plans to sell its warehouse facility in Monahans, Texas and its manufacturing facility in Waller, Texas, in their current condition and as a result the associated assets in the amount of $2.8 million are classified as held for sale as of March 31, 2021 and December 31, 2021. Subsequent to December 31, 2021, the Company executed a contract to sell its Waller facility for $4.3 million of gross proceeds and the sale closed on April 18, 2022 See further discussion in Note 17, Subsequent Events.