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Sales, Contract Assets and Contract Liabilities
6 Months Ended
Jun. 30, 2018
Revenue from Contract with Customer [Abstract]  
Revenue from Contract with Customer [Text Block]
Note 5 – Sales, Contract Assets and Contract Liabilities
 
The Company recognized no revenue during the three months ended June 30, 2018. For the six months ended June 30, 2018 the Company recognized revenues totaling $360,000 from completed flare projects, $128,000 of revenue from completion of a once through steam generator (OTSG) project and revenue of $42,000 from a small project. At June 30, 2018, the Company had contract assets of $39,000 and contract liabilities of $0.