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Balance Sheet
6 Months Ended
Jul. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet Balance Sheet
 As of July 31, 2020As of January 31, 2020
 CurrentLong-termTotalCurrentLong-termTotal
Accounts receivable$5,483 $ $5,483 $9,001 $ $9,001 
Less allowance for doubtful accounts(1,044) (1,044)(2,378) (2,378)
Accounts receivable net of allowance for doubtful accounts$4,439 $ $4,439 $6,623 $ $6,623 

July 31, 2020January 31, 2020
 (in thousands)
Inventories:
Raw materials$7,301 $7,388 
Finished goods3,836 3,758 
Work in progress3,423 2,720 
14,560 13,866 
Less allowance for obsolescence(1,251)(1,210)
Total inventories, net$13,309 $12,656 
 
July 31, 2020January 31, 2020
 (in thousands)
Property and equipment:
Marine seismic service equipment$7,316 $8,341 
Land and buildings4,319 4,274 
Furniture and fixtures9,646 9,364 
Autos and trucks491 491 
21,772 22,470 
Accumulated depreciation and amortization(16,615)(17,051)
Total property and equipment, net$5,157 $5,419 
As of January 31, 2020, the Company completed an annual review of long-lived assets noting that the undiscounted future cash flows exceeded their carrying value and no impairment has been recorded. Subsequent to January 31, 2020, there was a significant deterioration in macroeconomic factors and a decline in the market value of the Company’s equity securities which indicated possible impairment of long-lived assets.