XML 22 R12.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 6 - Product Warranties
3 Months Ended
Mar. 31, 2018
Notes to Financial Statements  
Product Warranty Disclosure [Text Block]
NOTE
6
- PRODUCT WARRANTIES
 
A liability is established for estimated future warranty and service claims based on historical claims experience and specific product failures. The Company expenses warranty costs directly to cost of products sold. Changes in the Company’s product warranty liability are:
 
 
   
March
3
1
,
 
   
201
8
   
201
7
 
Balance at beginning of year
  $
1,098
    $
1,435
 
Provision
   
378
     
606
 
Claims
   
(415
)
   
(530
)
Balance at end of period
  $
1,061
    $
1,511