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Note 5 - Property and Equipment
12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
 5. Property and Equipment

Property and equipment is stated at cost and consists of the following:

   
December 31,
 
   
2013
   
2012
 
Machinery and equipment
  $ 23,326,622     $ 22,863,921  
Furniture and fixtures
    1,316,014       1,274,477  
Leasehold improvements
    27,613,495       28,195,345  
Construction in progress
    157,292       42,270  
Subtotal
    52,413,423       52,376,013  
Less accumulated depreciation
    (19,474,712 )     (17,263,032 )
Total
  $ 32,938,711     $ 35,112,981  

Depreciation expense was $2,678,745, $2,496,749 and $1,816,188 for the years ended December 31, 2013, 2012 and 2011, respectively.