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Note 3 - Note Receivable | 12 Months Ended
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Dec. 31, 2020
Notes to Financial Statements |
Loans, Notes, Trade and Other Receivables Disclosure [Text Block] | Note 3. Note Receivable C2Go Note Receivable Under a loan and security agreement dated February 2, 2016, we loaned the principal amount of $200,000 to C2Go, Inc. with an interest rate of 10% per annum for a term of 18 months. The loan was secured by a first lien on all assets of C2Go. C2Go defaulted under the note by failing to repay the loan plus interest on August 2, 2017. On December 7, 2017, we entered into a note purchase and settlement agreement with C2Go and Mercury Investment Partners LLC. There are no assurances that we will be able to recover the remaining $145,000 principal and there are no assurances there will be any assets for us to recover from its lien on all the assets of C2Go if payment in full of the obligation is not made. The loss reserve on the note receivable as of December 31, 2020 and 2019 , was $145,000 reflecting a "more likely than not" recognition threshold.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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