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Note 4 - Revenue Recognition - Reconciliation of the Cost in Excess of Billings (Details) - USD ($) $ in Thousands | Jan. 31, 2024 | Jan. 31, 2023
--- | --- | ---
Costs incurred on uncompleted contracts | $ 21,912 | $ 18,342
Estimated earnings | 11,270 | 9,370
Earned revenue | 33,182 | 27,712
Less billings to date | 30,580 | 26,329
Costs in excess of billings, net | 2,602 | 1,383
Contract assets: Costs and estimated earnings in excess of billings on uncompleted contracts | 3,097 | 3,126
Contract liabilities: Billings in excess of costs and estimated earnings on uncompleted contracts | (495) | (1,743)
Costs in excess of billings, net | $ 2,602 | $ 1,383

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