Quarterly report pursuant to Section 13 or 15(d)

Operating Segments - Schedule of Segment Reporting Information (Details) (Parenthetical)

v3.10.0.1
Operating Segments - Schedule of Segment Reporting Information (Details) (Parenthetical) - USD ($)
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2018
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Tangible asset impairment loss $ 672,000   $ 672,000  
Tax benefit 1,342,000 (71,000)   1,272,000 (218,000)  
Tax Cuts and Jobs Act [Member]            
Tax benefit       (1,380,000)   $ (1,695,000)
M&EC Series B Preferred Stock [Member]            
Net gain     $ 1,596,000      
Treatment [Member]            
Tax benefit 1,342,000 [1] (70,000)   1,277,000 [1] 215,000  
Treatment [Member] | Tax Cuts and Jobs Act [Member]            
Tax benefit $ 1,380,000     1,380,000    
Treatment [Member] | M&EC Series B Preferred Stock [Member]            
Net gain       $ 1,596,000    
Treatment [Member] | Materials and Energy Corporation [Member]            
Tangible asset impairment loss   $ 672,000     $ 672,000  
[1] Amounts included a tax benefit recorded in the amount of approximately $1,380,000 during the third quarter. (see "Note 12 - Income Taxes" below).