Consolidated Balance Sheets Parenthetical - USD ($)	Sep. 30, 2016	Jun. 30, 2016
Common Stock, Value, Issued	$ 7,116,381	$ 7,087,762
Current Assets
Accounts receivable, allowances for doubtful accounts	$ 237,000	$ 301,000
Shareholders' Equity
Common shares, par value (in dollars per share)	$ 1.00	$ 1.00
Common shares, authorized (in shares)	20,000,000	20,000,000