XML 39 R28.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 3 - Cash (Details Textual) - USD ($)
$ in Thousands
Jul. 01, 2018
Dec. 31, 2017
Jul. 02, 2017
Dec. 31, 2016
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance $ 20,749 $ 18,330 $ 14,933 $ 10,629