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Note 12 - Concentrations | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] |
( 12 ) | Concentrations
Most of the Company’s customers are located in the United States. One customer accounted for approximately 29% of revenue in 2018 and no single customer accounted for more than 10% of revenue in 2017 or 2016. One customer accounted for 23% of accounts receivable at December 31, 2018, 20% of accounts receivable at December 31, 2017 and another customer accounted for 29% of accounts receivable at December 31, 2016.

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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