Stock-Based Compensation - Summary of Activity of Stock Options (Details) - Stock Options [Member] - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Number of Shares, Outstanding, Beginning Balance	215,000	465,000
Number of Shares, Granted	50,000	100,000
Number of Shares, Forfeited, cancelled or expired	(155,000)	(350,000)
Number of Shares, Outstanding, Ending Balance	110,000	215,000	465,000
Number of Shares, Expected to vest at June 30, 2018	55,000	50,000
Number of Shares, Options Non-Vested	55,000	165,000
Number of Shares, Options Exercisable	55,000	50,000
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Outstanding, Beginning Balance	$ 1.67	$ 2.95
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Granted	1.35	1.78
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Forfeited, cancelled or expired	(1.27)	0
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Outstanding, Ending Balance	1.09	1.67	$ 2.95
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Expected to vest at June 30, 2018	1.09	1.61
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Options Non-Vested	1.09	1.69
Weighted Avg Grant Date/Exercise Price Fair Value per Share, Options Exercisable	$ 1.09	$ 1.61
Weighted Avg Contractual Term in Years, Outstanding	8 years 2 months 4 days	9 years 14 days	9 years 14 days
Weighted Avg Contractual Term in Years, Granted	0 years	0 years
Weighted Avg Contractual Term in Years, Forfeited, cancelled or expired	0 years	0 years
Weighted Avg Contractual Term in Years, Expected to vest at June 30, 2018	8 years 3 months 29 days	8 years 10 months 24 days
Weighted Avg Contractual Term in Years, Options Non-Vested	7 years 8 months 19 days	9 years 25 days
Weighted Avg Contractual Term in Years, Options Exercisable	8 years 3 months 29 days	8 years 10 months 24 days
Aggregate Intrinsic Value, Outstanding, Beginning Balance	$ 0	$ 0
Aggregate Intrinsic Value, Granted	0	0
Aggregate Intrinsic Value, Forfeited, cancelled or expired	0	0
Aggregate Intrinsic Value, Outstanding, Ending Balance	(109,000)	0	$ 0
Aggregate Intrinsic Value, Options Vested	(78,800)	0
Aggregate Intrinsic Value, Options Non-Vested	(30,000)	0
Aggregate Intrinsic Value, Options Exercisable	$ (78,800)	$ 0