Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY RESTRICTED STOCK ACTIVITY (Details)

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STOCKHOLDERS' EQUITY RESTRICTED STOCK ACTIVITY (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Jan. 24, 2017
Apr. 08, 2016
Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     2,393,873
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Stock Issued During Period, Value, Restricted Stock Award, Gross $ 1.4    
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Nonvested, beginning balance (in shares)     22,348
Granted (in shares)   56,260 0
Vested (in shares)     (5,485)
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited     (418)
Nonvested, ending balance (in shares)     16,445
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Nonvested, beginning balance (in dollars per share)     $ 12.15
Granted (in dollars per share)     0
Vested (in dollars per share)     12.15
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value     12.28
Nonvested, ending balance (in dollars per share)     $ 12.15
Restricted Stock | Equity Incentive Plan 2016      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Nonvested, beginning balance (in shares)     38,256
Granted (in shares)     56,260
Vested (in shares)     (8,834)
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited     (1,148)
Nonvested, ending balance (in shares)     84,534
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Nonvested, beginning balance (in dollars per share)     $ 34.13
Granted (in dollars per share)     25.44
Vested (in dollars per share)     29.58
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value     28.55
Nonvested, ending balance (in dollars per share)     $ 28.90