Text Block Comparison: Costs in Excess of Billings and Billings in Excess of Costs [Table Text Block] (us-gaap:CostsInExcessOfBillingsAndBillingsInExcessOfCostsTableTextBlock)

Documentation: Tabular disclosure for billings on uncompleted contracts in excess of costs and costs of uncompleted contracts in excess of billings.

(For last 10-K submitted to SEC as of March 31, 2018)