CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Net sales	$ 3,922us-gaap_SalesRevenueNet	$ 2,404us-gaap_SalesRevenueNet	$ 9,310us-gaap_SalesRevenueNet	$ 7,599us-gaap_SalesRevenueNet
Cost of sales	2,877us-gaap_CostOfRevenue	1,864us-gaap_CostOfRevenue	6,741us-gaap_CostOfRevenue	5,564us-gaap_CostOfRevenue
Gross profit	1,045us-gaap_GrossProfit	540us-gaap_GrossProfit	2,569us-gaap_GrossProfit	2,035us-gaap_GrossProfit
Operating expenses:
Selling expenses	363us-gaap_SellingExpense	177us-gaap_SellingExpense	691us-gaap_SellingExpense	408us-gaap_SellingExpense
General and administrative expenses	592us-gaap_GeneralAndAdministrativeExpense	420us-gaap_GeneralAndAdministrativeExpense	1,542us-gaap_GeneralAndAdministrativeExpense	1,304us-gaap_GeneralAndAdministrativeExpense
Research and development costs	480us-gaap_ResearchAndDevelopmentExpense	381us-gaap_ResearchAndDevelopmentExpense	1,309us-gaap_ResearchAndDevelopmentExpense	1,121us-gaap_ResearchAndDevelopmentExpense
Total operating expenses	1,435us-gaap_OperatingExpenses	978us-gaap_OperatingExpenses	3,542us-gaap_OperatingExpenses	2,833us-gaap_OperatingExpenses
Operating loss	(390)us-gaap_OperatingIncomeLoss	(438)us-gaap_OperatingIncomeLoss	(973)us-gaap_OperatingIncomeLoss	(798)us-gaap_OperatingIncomeLoss
Interest expense	(1)us-gaap_InterestExpense	(2)us-gaap_InterestExpense	(4)us-gaap_InterestExpense	(7)us-gaap_InterestExpense
Interest income	1us-gaap_OtherNonoperatingIncome	1us-gaap_OtherNonoperatingIncome	6us-gaap_OtherNonoperatingIncome	11us-gaap_OtherNonoperatingIncome
Gain from disposal of equipment	1us-gaap_GainLossOnDispositionOfAssets1		1us-gaap_GainLossOnDispositionOfAssets1
Realized gain on sale of investments	395	27	455	27
Income (loss) from continuing operations before income taxes	6	(412)	(515)	(767)
Income tax (expense) benefit	(98)us-gaap_IncomeTaxExpenseBenefit	54us-gaap_IncomeTaxExpenseBenefit	40us-gaap_IncomeTaxExpenseBenefit	88us-gaap_IncomeTaxExpenseBenefit
Loss from continuing operations	(92)	(358)	(475)	(679)
Income (loss) from discontinued operations, net of income taxes	16	(27)	37	167
Net loss	(76)us-gaap_NetIncomeLoss	(385)us-gaap_NetIncomeLoss	(438)us-gaap_NetIncomeLoss	(512)us-gaap_NetIncomeLoss
Other comprehensive income, net of tax:
Unrealized gain from marketable equity investments		20		225
Less: Reclassification of realized gains included in net loss		(27)		(27)
Comprehensive loss	$ (76)	$ (392)	$ (438)	$ (314)
Basic and diluted net loss per share:
Loss from continuing operations (in dollars per share)	$ (0.02)	$ (0.11)	$ (0.11)	$ (0.20)
Income (loss) from discontinued operations (in dollars per share)		$ (0.01)	$ 0.01	$ 0.05
Net loss (in dollars per share)	$ (0.02)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.12)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.10)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.15)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average common shares outstanding:
Basic (in shares)	4,158	3,342	4,179	3,344
Diluted (in shares)	4,158	3,342	4,179	3,344
Common shares outstanding (in shares)	4,140	3,344	4,140	3,344

Average number of common shares or units issued and outstanding that are used in calculating earnings per share (EPS).

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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The net result for the period of deducting operating expenses from operating revenues.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

Expenses recognized in the period that are directly related to the selling and distribution of products or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

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-Name Accounting Standards Codification

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