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MAJOR CUSTOMERS (Details Narrative) - Number |  |  | 3 Months Ended
--- | --- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Revenue [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Number of large commercial customers |  |  | 4 | 4
Revenue [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 27.00% | 26.00%
Revenue [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 14.00% | 14.00%
Revenue [Member] | Customer Concentration Risk [Member] | Customer Three [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 13.00% | 14.00%
Revenue [Member] | Customer Concentration Risk [Member] | Customer Four [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage |  |  | 11.00% | 11.00%
Contract Assets [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Number of large commercial customers | 5 | 3 |  |
Contract Assets [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 34.00% | 53.00% |  |
Contract Assets [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 14.00% | 21.00% |  |
Contract Assets [Member] | Customer Concentration Risk [Member] | Customer Three [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 12.00% | 10.00% |  |
Contract Assets [Member] | Customer Concentration Risk [Member] | Customer Four [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 12.00% |  |  |
Contract Assets [Member] | Customer Concentration Risk [Member] | Customer Five [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 10.00% |  |  |
Accounts Receivable [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Number of large commercial customers | 4 | 4 |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 24.00% | 18.00% |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 16.00% | 16.00% |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Three [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 15.00% | 14.00% |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Four [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 10.00% | 14.00% |  |

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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