Note 3 - Investment Write-down

6 Months Ended

Jun. 30, 2016

Notes to Financial Statements

Cost-method Investments, Description [Text Block]

3. Investment Write-down – In the quarter ended March 31, 2016, we recorded an impairment charge of $700,000 to reduce the carrying value of our minority equity ownership in Lumense, Inc., an early stage sensor technology company, to $50,000. Subsequently in the quarter ended June 30, 2016, we recorded an additional impairment charge of $50,000 to fully write-down our minority equity ownership in Lumense, Inc. to zero. Given that Lumense has no reasonable prospects to fund its operations and product development, we believe a full write-down is prudent and required.