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Note 15 - Segment Reporting (Tables)
12 Months Ended
Dec. 31, 2014
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
   

CVD

   

SDC

   

Eliminations

   

Consolidated

 

Assets

  $ 44,953,847     $ 4,733,926     $ (4,131,301 )   $ 45,556,472  
                                 

Revenue

  $ 23,831,036     $ 5,580,212     $ (1,420,785 )   $ 27,990,463  

Interest Expense

    100,829       8,589               109,418  

Depreciation and Amortization

    728,995       68,933               797,928  

Capital expenditures

    571,240       46,521               617,761  

Pretax (loss)/earnings

    (4,877,892     1,168,422               (3,709,470 )
   

CVD

   

SDC

   

Eliminations

   

Consolidated

 

Assets

  $ 39,783,689     $ 6,334,352     $ (6,976,402 )   $ 39,141,639  
                                 

Revenue

  $ 13,136,083     $ 5,155,641     $ (407,797 )   $ 17,883,927  

Interest Expense

    162,914       824               163,738  

Depreciation and amortization

    571,046       75,376               646,422  

Capital expenditures

    1,954,621       116,936               2,071,557  

Pretax (loss)/earnings

    (2,697,114 )     740,384               (1,956,730 )