Annual report pursuant to Section 13 and 15(d)

Note 17 - Segment Reporting (Details Textual)

v3.6.0.2
Note 17 - Segment Reporting (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Number of Reportable Segments     3  
Revenue, Net     $ 51,219,000 $ 62,383,000
Assets of Disposal Group Including Discontinued Operation Including Not Held for Sale     434,000 565,000
Tangible Asset Impairment Charges     1,816,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)     8,288,000
Income Tax Expense (Benefit)     (2,994,000) 543,000
M&EC [Member]        
Revenue, Net     4,419,000 6,591,000
Tangible Asset Impairment Charges $ 1,816,000 $ 1,816,000    
Income Tax Expense (Benefit)   (3,203,000)    
M&EC [Member] | Permit [Member]        
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 8,288,000 $ 8,288,000    
Promissory Note Dated August 2, 2013 [Member]        
Debt Instrument, Unamortized Discount     0 50,000
Term Loan [Member]        
Debt Issuance Costs, Net     151,000 152,000
Credit Concentration Risk [Member] | Sales Revenue, Services, Net [Member] | Federal Government [Member]        
Revenue, Net     $ 27,354,000 $ 36,105,000
Concentration Risk, Percentage     53.40% 57.90%