STOCK COMPENSATION PLANS (Details)			3 Months Ended
	May 02, 2018 $ / shares shares	May 03, 2017 $ / shares shares	Mar. 31, 2019 USD ($) Director $ / shares shares	Mar. 31, 2018 USD ($)
Stock Compensation Plans [Abstract]
Number of directors in committee | Director			3
Class A Stock [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period, option shares (in shares) | shares			168,750
Granted, option shares (in shares) | shares			0
Exercised/vested and released, option shares (in shares) | shares			(13,500)
Expired/cancelled, option shares (in shares) | shares			0
Outstanding at end of period, option shares (in shares) | shares			155,250
Exercisable/vested at end of period, option share (in shares) | shares			155,250
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period, weighted average exercise price (in dollars per shares)			$ 20.11
Granted, weighted average exercise price (in dollars per share)			0
Exercised/vested and released, weighted average exercise price (in dollars per shares)			16.94
Expired/cancelled, weighted average exercise price (in dollars per share)			0
Outstanding at end of period, weighted average exercise price (in dollars per shares)			20.38
Options exercisable at year end (in dollars per shares)			$ 20.38
Shares of Class A Non-Voting Common Stock under option [Abstract]
Outstanding at end of period, weighted average remaining life			3 years 3 months 14 days
Exercisable/vested at end of period, weighted average remaining life			3 years 3 months 14 days
Outstanding at beginning of period, aggregate intrinsic value | $			$ 2,491,000
Granted, aggregate intrinsic value | $			0
Exercised/vested and released, aggregate intrinsic value | $			297,000
Expired/cancelled, aggregate intrinsic value | $			0
Outstanding at end of period, aggregate intrinsic value | $			2,622,000
Exercisable/vested at end of period, aggregate intrinsic value | $			2,622,000
Class A Stock [Member] | Stock Options [Member] | 2015 Equity Compensation Plan [Member]
Stock Compensation Plans [Abstract]
Unrecognized expense related to non-vested option shares | $			0
Class A Stock [Member] | Restricted Stock [Member]
Stock Compensation Plans [Abstract]
Compensation expense | $			$ 47,000	$ 47,000
Fair value per share (in dollars per share)	$ 38.51	$ 38.10
Award vesting period			1 year
Shares [Roll Forward]
Outstanding at beginning of year (in shares) | shares			5,000
Granted (in shares) | shares	5,000	5,000	0
Exercised/vested and released, restricted stock awards (in shares) | shares			0
Cancelled (in shares) | shares			0
Unvested Outstanding at end of year (in shares) | shares			5,000
Weighted Average Grant Date Fair Value [Abstract]
Outstanding at beginning of year (in dollars per shares)			$ 38.51
Granted, weighted average grant date fair value (in dollars per share)			0
Vested and released, weighted average grant date fair value (in dollars per shares)			0
Cancelled, weighted average grant date fair value (in dollars per share)			0
Unvested Outstanding at end of year (in dollars per shares)			$ 38.51
Class A Stock [Member] | Restricted Stock [Member] | 2015 Equity Compensation Plan [Member]
Stock Compensation Plans [Abstract]
Unrecognized expense related to non-vested option shares | $			$ 16,400
Period over which unvested options cost will recognized			1 month 2 days