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4. Bank Line of Credit and Debt (Tables)
6 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]  
Schedule of Minimum Tangible Net Worth
   December 31, 
   2015 
   (In thousands) 
Minimum TNW  $6,000 
Actual TNW  $8,496 
Outstanding balances of loans
  December 31,   June 30, 
   2015   2015 
  (In thousands) 
Outstanding borrowings on the line of credit  $700   $700 
Available borrowing capacity  $1,626   $1,736 
Outstanding letters of credit  $51   $110