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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015 | Jun. 30, 2015
Minimum [Member] |  |  |  |  |
Media Content Service Period |  |  | 30 days |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 7 years |  |
Standard Warranty Term |  |  | 1 year |  |
Maximum [Member] | Leasehold Improvements [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  | 15 years |  |
Maximum [Member] | Product Warranty Exceptions [Member] |  |  |  |  |
Standard Warranty Term |  |  | 10 years |  |
Maximum [Member] |  |  |  |  |
Media Content Service Period |  |  | 1 year |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 20 years |  |
Standard Warranty Term |  |  | 5 years |  |
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset | $ 0 |  | $ 0 |  |
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability | 0 |  | 0 |  |
Cash, FDIC Insured Amount | 250,000 |  | 250,000 |  |
Cash, Uninsured Amount | 37,093,000 |  | 37,093,000 |  | $ 28,494,000
Depreciation | 1,603,000 | $ 1,465,000 | 4,524,000 | $ 4,328,000 |
Research and Development Expense | $ 1,562,000 | $ 1,096,000 | $ 4,193,000 | $ 4,397,000 |
Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares | 893,000 | 440,000 | 846,000 | 401,000 |

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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