Accumulated Other Comprehensive (Loss) Income - (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning, Balance			$ (132,226)	$ (161,000)
Other comprehensive income (loss) before reclassifications			38,000	(115,000)
Amounts reclassified from accumulated other comprehensive income (loss)			15,000	(2,000)
Net current-period other comprehensive income (loss)	$ 48,361	$ (167,703)	52,860	(116,538)
Ending, Balance	(79,366)	(278,000)	(79,366)	(278,000)
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning, Balance			(172,000)	(173,000)
Other comprehensive income (loss) before reclassifications			111,000	(37,000)
Net current-period other comprehensive income (loss)			111,000	(37,000)
Ending, Balance	(61,000)	(210,000)	(61,000)	(210,000)
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			(73,000)	(78,000)
Amounts reclassified from accumulated other comprehensive income (loss)			15,000	(2,000)
Net current-period other comprehensive income (loss)			(58,000)	(80,000)
Ending, Balance	$ (18,000)	$ (68,000)	$ (18,000)	$ (68,000)