INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Domestic and foreign components of pretax income
Domestic	$ 69,211	$ 74,978	$ 66,253
Foreign	7,051	10,426	6,953
Earnings before income taxes	76,262	85,404	73,206
Current:
Federal	14,831	15,133	12,414
Foreign	1,029
State	1,763	2,942	1,421
Total current	17,623	18,075	13,835
Deferred:
Federal	(1,006)	(543)	(577)
Foreign	1,316	2,422	2,685
State	(645)	611	458
Total deferred	(335)	2,490	2,566
Total provision for income taxes	17,288	20,565	$ 16,401
Deferred tax assets:
Accrued customer promotions	1,506	198
Deferred compensation	18,501	19,432
Postretirement benefits	3,355	3,439
Other accrued expenses	3,078	3,979
Foreign subsidiary tax loss carry forward	4,508	4,584
Outside basis difference in foreign subsidiary	365	365
Deductible state tax depreciation	471	512
Tax credit carry forward	3,288	3,059
Deferred tax assets, gross	35,072	35,568
Valuation allowance	(5,593)	(4,985)
Total deferred tax assets	29,479	30,583
Deferred tax liabilities:
Depreciation	22,192	23,375
Deductible goodwill and trademarks	37,348	36,591
Accrued export company commissions	4,508	4,367
Employee benefit plans	1,767	2,700
Inventory reserves	1,994	2,526
Prepaid insurance	569	710
Unrealized capital gain	2,515	1,362
Deferred foreign exchange gain	179	260
Deferred gain on sale of real estate	5,269	5,298
Total deferred tax liabilities	76,341	77,189
Net deferred tax liability	46,862	$ 46,606
State tax credit carry-forwards expiring in 2020	495
State tax credit carry-forwards expiring in 2021	771
State tax credit carry-forwards expiring in 2023	221
State tax credit carry-forwards expiring in 2024	253
State tax credit carry-forwards expiring in 2028	50
State tax credit carry-forwards expiring in 2029	131
State tax credit carry-forwards expiring in 2030	213
State tax credit carry-forwards expiring in 2031	225
State tax credit carry-forwards expiring in 2032	238
State tax credit carry-forwards expiring in 2033	211
State tax credit carry-forwards expiring in 2034	$ 234
U.S. statutory rate (as a percent)	21.00%	21.00%	21.00%
Valuation allowance for the expired amounts	$ 837	$ 770