Accumulated Other Comprehensive (Loss) Income - (Details) - USD ($)	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning, Balance	$ (132,226)	$ (161,000)
Other comprehensive income (loss) before reclassifications	(48,000)	53,000
Amounts reclassified from accumulated other comprehensive income (loss)	52,000	(2,000)
Net current-period other comprehensive income (loss)	4,499	51,165
Ending, Balance	(127,727)	(110,000)
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning, Balance	(172,000)	(173,000)
Other comprehensive income (loss) before reclassifications		17,000
Amounts reclassified from accumulated other comprehensive income (loss)	37,000
Net current-period other comprehensive income (loss)	37,000	17,000
Ending, Balance	(135,000)	(156,000)
Net Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning, Balance	40,000	12,000
Other comprehensive income (loss) before reclassifications	(48,000)	36,000
Amounts reclassified from accumulated other comprehensive income (loss)	15,000	(2,000)
Net current-period other comprehensive income (loss)	(33,000)	34,000
Ending, Balance	$ 7,000	$ 46,000