Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Narrative) (Details)

v3.8.0.1
Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Feb. 27, 2018
Dec. 13, 2017
Sep. 27, 2017
May 25, 2017
Feb. 24, 2017
Dec. 01, 2016
Oct. 07, 2016
May 27, 2016
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Jun. 30, 2017
Property, Plant and Equipment [Line Items]                          
Restricted cash                 $ 500   $ 500   $ 0
Earnings from equity method investment                 99 $ (6) 278 $ 73  
Revaluation adjustment                 0 198 529 198  
Advertising expense                 961 176 2,537 542  
Shipping, handling costs                 $ 1,315 $ 1,052 $ 3,498 $ 3,349  
Stock options outstanding, number of shares outstanding (shares)                 853,015   853,015   741,327
Dividends per share (usd per share) $ 0.08 $ 0.08 $ 0.08 $ 0.08 $ 0.08 $ 0.07 $ 0.07 $ 0.07 $ 0.08 $ 0.08 $ 0.24 $ 0.22  
Minimum                          
Property, Plant and Equipment [Line Items]                          
Estimated useful lives of related assets                     3 years    
Estimated useful lives of intangibles                     3 years    
Maximum                          
Property, Plant and Equipment [Line Items]                          
Estimated useful lives of related assets                     25 years    
Estimated useful lives of intangibles                     15 years