A. SUMMARY OF ACCOUNTING POLICIES (Details - Doubtful accounts) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Accounting Policies [Abstract] | ||
| Beginning balance | $ 34,573 | $ 13,299 |
| Provision charged to expense | 35,187 | 32,047 |
| Deductions | (47,587) | (10,773) |
| Ending balance | $ 22,173 | $ 34,573 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of recoveries of receivables doubtful of collection that were previously charged off. No definition available.
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| X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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