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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 USD ($) segment | Apr. 01, 2018 USD ($) | Dec. 31, 2018 USD ($) | Dec. 30, 2018 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Effective income tax rate reconciliation, percent | 22.80% | 22.10% |  |
Accumulated depreciation and amortization, property, plant, and equipment | $ 2,300,000 |  |  | $ 2,100,000
Deposit contracts, assets | 3,300,000 |  |  | 2,900,000
Impairment of long-lived assets | $ 0 | $ 0 |  |
Number of reportable segments | segment | 3 |  |  |
Revenue, remaining performance obligation, amount | $ 0 |  |  |
Contract with customer, performance obligation satisfied in previous period | 0 |  |  |
Capitalized contract cost, gross | 0 |  |  |
Capitalized contract cost, impairment loss | 0 |  |  |
Right-of-use asset - operating leases | 3,924,340 |  |  | $ 0
Operating lease, liability | $ 5,006,903 |  |  |
Minimum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Lessee, Operating Lease, Renewal Term | 3 years |  |  |
Useful life | 3 years |  |  |
Maximum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Lessee, Operating Lease, Renewal Term | 10 years |  |  |
Useful life | 10 years |  |  |
Accounting Standards Update 2016-02 |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Right-of-use asset - operating leases |  |  | $ 4,100,000 |
Operating lease, liability |  |  | $ 4,300,000 |

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