Stock-Based Compensation (Details 1) - Options [Member] - $ / shares	6 Months Ended	12 Months Ended
Dec. 31, 2017	Jun. 30, 2017	Jun. 30, 2016
Outstanding Options, Exercise Price	$ 3.81	$ 3.81	$ 6.88
Outstanding Options, Number	141,000	141,000	66,000
Exercisable Options, Average Exercise Price	$ 3.83	$ 7.03
Exercisable Options, Number	139,000	64,000
Exercise Price 7.75 [Member]
Outstanding Options, Exercise Price	$ 7.75	$ 7.75
Outstanding Options, Number	56,000	56,000
Outstanding Options, Average Remaining Contractual Life	4 months 17 days	10 months 17 days
Exercisable Options, Average Exercise Price	$ 7.75	$ 7.75
Exercisable Options, Number	56,000	56,000
Exercisable Options, Average Remaining Contractual Life	4 months 17 days	10 months 17 days
Exercise Price 2.01 [Member]
Outstanding Options, Exercise Price	$ 2.01	$ 2.01
Outstanding Options, Number	10,000	10,000
Outstanding Options, Average Remaining Contractual Life	5 years 29 days	5 years 7 months 2 days
Exercisable Options, Average Exercise Price	$ 2.01	$ 2.01
Exercisable Options, Number	8,000	8,000
Exercisable Options, Average Remaining Contractual Life	5 years 29 days	5 years 7 months 2 days
Exercise Price 1.10 [Member]
Outstanding Options, Exercise Price	$ 1.10	$ 1.10
Outstanding Options, Number	75,000	75,000
Outstanding Options, Average Remaining Contractual Life	3 years 6 months 25 days	4 years 26 days
Exercisable Options, Average Exercise Price	$ 1.10	$ 1.10
Exercisable Options, Number	75,000
Exercisable Options, Average Remaining Contractual Life	3 years 6 months 25 days	0 years

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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