Quarterly report pursuant to Section 13 or 15(d)

Contract Assets and Contract Liabilities - Narrative (Details)

v3.19.1
Contract Assets and Contract Liabilities - Narrative (Details)
3 Months Ended
Mar. 31, 2019
USD ($)
Revenue From Contract With Customer [Abstract]  
Contract liability billings in excess of costs and estimated earnings on uncompleted contracts $ 939,000