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Note 5 - Property and Equipment
12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]
5
.
Property and Equipment
 
Property and equipment consisted of the following:
 
   
December 31,
 
   
2018
   
2017
 
                 
Buildings
  $
493,000
    $
493,000
 
Machinery and equipment
   
11,231,000
     
11,036,000
 
Office furniture and equipment
   
1,260,000
     
1,151,000
 
Leasehold improvements
   
508,000
     
507,000
 
Software
   
373,000
     
177,000
 
                 
     
13,865,000
     
13,364,000
 
Less accumulated depreciation and amortization
   
(10,621,000
)    
(10,206,000
)
                 
    $
3,244,000
    $
3,158,000
 
 
Depreciation and amortization expense for property and equipment was
$520,000
and
$558,000
for the years ended
December 31, 2018
and
2017,
respectively.