XML 41 R29.htm IDEA: XBRL DOCUMENT v3.19.1
Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2018
Significant Accounting Policies [Abstract]  
Annual Rates of Depreciation

Annual rates of depreciation are as follows:

Land
1%
Building
2%
Machinery and equipment
10% - 33%
Computer equipment and software
20% - 33%
Office furniture and equipment
6% - 20%
Automobiles
15%
Schedule of Deferred Revenue in Consolidated Balance Sheets
These amounts are recorded as deferred revenue in the Consolidated Balance Sheets.

   
Year Ended
December 31, 2018
 
   
U.S. Dollars (in thousands)
 
Beginning of year
   
1,037
 
Deferral of revenue
   
1,764
 
Recognition of deferred revenue
   
(977
)
         
Balance at end of year
   
1,824