INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Domestic and foreign components of pretax income
Domestic	$ 74,978	$ 66,253	$ 76,042
Foreign	10,426	6,953	8,519
Earnings before income taxes	85,404	73,206	84,561
Current:
Federal	15,133	12,414	6,019
State	2,942	1,421	369
Total current	18,075	13,835	6,388
Deferred:
Federal	(543)	(577)	(7,191)
Foreign	2,422	2,685	3,425
State	611	458	1,285
Total deferred	2,490	2,566	(2,481)
Total provision for income taxes	20,565	16,401	$ 3,907
Deferred tax assets:
Accrued customer promotions	198	913
Deferred compensation	19,432	15,872
Postretirement benefits	3,439	3,119
Other accrued expenses	3,979	4,520
Foreign subsidiary tax loss carry forward	4,584	5,731
Outside basis difference in foreign subsidiary	365	273
Unrealized capital losses		472
Deductible state tax depreciation	512	390
Tax credit carry forward	3,059	2,989
Deferred tax assets, gross	35,568	34,279
Valuation allowance	(4,985)	(3,892)
Total deferred tax assets	30,583	30,387
Deferred tax liabilities:
Depreciation	23,375	21,637
Deductible goodwill and trademarks	36,591	35,037
Accrued export company commissions	4,367	4,211
Employee benefit plans	2,700	3,539
Inventory reserves	2,526	2,784
Prepaid insurance	710	735
Unrealized capital gain	1,362
Deferred foreign exchange gain	260	577
Deferred gain on sale of real estate	5,298	5,286
Total deferred tax liabilities	77,189	73,806
Net deferred tax liability	46,606	$ 43,419
State tax credit carry-forwards expiring in 2019	23
State tax credit carry-forwards expiring in 2020	672
State tax credit carry-forwards expiring in 2021	784
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	$ 205
U.S. statutory rate (as a percent)	21.00%	21.00%	35.00%