Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Allowance for Doubtful Accounts [Member]
Balance at beginning of period		$ 211,000	$ 253,000
Additions Charged to costs and expenses		$ 119,000	$ 130,000
Additions Charged to other accounts
Deductions	[1]	$ (150,000)	$ (172,000)
Balance at end of period		180,000	211,000
Valuation Allowance of Deferred Tax Assets [Member]
Balance at beginning of period		11,029,000	9,725,000
Additions Charged to costs and expenses		$ (1,322,000)	(3,836,000)
Additions Charged to other accounts			$ 5,140,000	[2]
Deductions
Balance at end of period		$ 9,707,000	$ 11,029,000

[1] Uncollectible accounts written off, net of recoveries

[2] Change in valuation allowance, net of temporary differences as discussed in Footnote 11 of the accompanying financial statements