Annual report pursuant to Section 13 and 15(d)

Note 4 - Other Intangible Assets (Details)

v3.3.1.900
Note 4 - Other Intangible Assets (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Patents [Member] | Minimum [Member]    
Useful Lives 8 years  
Patents [Member] | Maximum [Member]    
Useful Lives 18 years  
Patents [Member]    
Gross Carrying Amount $ 539,000 $ 512,000
Accumulated Amortization (203,000) (168,000)
Net Carrying Amount $ 336 344
Computer Software, Intangible Asset [Member]    
Useful Lives 3 years  
Gross Carrying Amount $ 395,000 375,000
Accumulated Amortization (364,000) (319,000)
Net Carrying Amount $ 31 56
Customer Relationships [Member]    
Useful Lives 12 years  
Gross Carrying Amount $ 3,370,000 3,370,000
Accumulated Amortization (1,671,000) (1,335,000)
Net Carrying Amount $ 1,699 2,035
Permits [Member]    
Useful Lives 10 years  
Gross Carrying Amount $ 545,000 545,000
Accumulated Amortization (373,000) (318,000)
Net Carrying Amount 172 227
Gross Carrying Amount 4,849,000 4,802,000
Accumulated Amortization (2,611,000) (2,140,000)
Net Carrying Amount $ 2,238 $ 2,662