Stock Based Compensation (Details 1)	12 Months Ended
	Jun. 30, 2018 $ / shares shares
2.22 - 6.99 Exercise Prices
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Options Outstanding, Number | shares	18,000
Options Outstanding, Weighted Average Remaining Life	6 years 10 months 24 days
Option Outstanding, Weighted Average Exercise Price | $ / shares	$ 3.30
Options Exercisable, Number | shares	15,000
Options Exercisable, Weighted Average Exercise Price | $ / shares	$ 3.51
7.0 Exercise Prices
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Options Outstanding, Number | shares	15,000
Options Outstanding, Weighted Average Remaining Life	3 years 2 months 12 days
Option Outstanding, Weighted Average Exercise Price | $ / shares	$ 7.00
Options Exercisable, Number | shares	15,000
Options Exercisable, Weighted Average Exercise Price | $ / shares	$ 7.00
7.01 - 10.08 Exercise Prices
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Options Outstanding, Number | shares	12,000
Options Outstanding, Weighted Average Remaining Life	1 year 10 months 24 days
Option Outstanding, Weighted Average Exercise Price | $ / shares	$ 8.49
Options Exercisable, Number | shares	12,000
Options Exercisable, Weighted Average Exercise Price | $ / shares	$ 8.49
2.22 - 10.08 Exercise Prices
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Options Outstanding, Number | shares	45,000
Options Outstanding, Weighted Average Remaining Life	4 years 3 months 18 days
Option Outstanding, Weighted Average Exercise Price | $ / shares	$ 5.92
Options Exercisable, Number | shares	42,000
Options Exercisable, Weighted Average Exercise Price | $ / shares	$ 6.18