INCOME TAXES (Details) - USD ($)		3 Months Ended		12 Months Ended
	Jan. 01, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Components of income tax expense (benefit)
Income tax expense (benefit) for the period		$ 2,322,000	$ 3,942,000
Effective Tax Rate		19.90%	35.30%
Net deferred tax assets		$ 11,893,000		$ 8,758,000
Valuation allowance		$ 0
Income tax expense recorded under new standards				$ 5,800,000
Accumulated Other Comprehensive Loss | Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax expense reclassification	$ (1,400,000)
Retained Earnings | Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax expense reclassification	$ 1,400,000