UNCOMPLETED CONTRACTS (Details) - USD ($) |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2018 |
Dec. 31, 2017 |
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| Contractors [Abstract] | ||
| Billings to date | $ 2,973,000 | $ 2,875,500 |
| Revenue Recognized | (2,759,100) | (2,648,200) |
| Billings in excess of costs and estimated earnings on uncompleted contracts | $ 213,900 | $ 227,300 |
| X | ||||||||||
- Definition The amount of billings to date in determining billings in excess of costs and estimated earnings on uncompleted contracts. No definition available.
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| X | ||||||||||
- Definition Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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