Quarterly report pursuant to Section 13 or 15(d)

Inventory (Details)

v3.10.0.1
Inventory (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Inventory [Abstract]    
Raw material and spare parts $ 954,000 $ 953,000
Work-in-progress 2,093,000 2,075,000
Total $ 3,047,000 $ 3,028,000