Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

v3.8.0.1
Income Taxes (Narrative) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosures [Line Items]      
Rate change effects $ (380,961) $ 0 $ 0
Income tax payments 2,576,515 991,888 2,250,558
Deferred Tax Assets, Valuation Allowance 2,087,860 1,790,051  
State Jurisdiction [Member]      
Income Tax Disclosures [Line Items]      
Net operating loss carryforwards 49,711,027 49,676,851  
Portion of NOL subject to valuation allowance 49,612,725    
Valuation allowance for net operating loss carrryforwards 2,064,674 1,724,843  
Valuation allowance, other deferred tax assets [Member]      
Income Tax Disclosures [Line Items]      
Deferred Tax Assets, Valuation Allowance 23,186    
Bristol Fab and Ram-fab [Member]      
Income Tax Disclosures [Line Items]      
Benefit from income taxes   $ 51,000 $ 651,000
Continuing Operations [Member] | Operating Loss Carryforwards [Member] | State Jurisdiction [Member]      
Income Tax Disclosures [Line Items]      
Increase in valuation allowance during the period $ 297,809