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Note 4 - Equity Investments
12 Months Ended
Dec. 31, 2019
Notes to Financial Statements  
Cost and Equity Method Investments Disclosure [Text Block]
(
4
)
Equity Investments
 
We make equity investments to promote business and strategic objectives. For investments that do
not
have a readily determinable fair value, we apply either cost or equity method of accounting depending on the nature of our investment and our ability to exercise significant influence. Investments are periodically analyzed to determine whether or
not
there are any indicators of impairment and written down to fair value if the investment has incurred an other than temporary impairment. During
2017,
we acquired a
$1.3
million investment in convertible preferred stock of PracticingExcellence.com, Inc., a privately-held Delaware corporation (“PX”). It is
not
practicable for us to estimate fair value at each reporting date due to the cost and complexity of the calculations for this non-public entity. Our investment in PX is included in non-current assets and is carried at cost less impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer, if any. We have a seat on PX's board of directors and our investment, which is
not
considered to be in-substance common stock, represents approximately
15.7%
of the issued and outstanding equity interests in PX.