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Note 4 - Revenue Recognition - Reconciliation of the Cost in Excess of Billings (Details) - USD ($)
$ in Thousands
Jul. 31, 2021
Jan. 31, 2021
Costs incurred on uncompleted contracts $ 20,705 $ 17,543
Estimated earnings 10,986 9,651
Earned revenue 31,691 27,194
Less billings to date 31,759 23,949
Costs in excess of billings, net (68) 3,245
Contract assets: Costs and estimated earnings in excess of billings on uncompleted contracts 1,713 4,007
Contract liabilities: Billings in excess of costs and estimated earnings on uncompleted contracts $ (1,781) $ (762)