QUARTERLY FINANCIAL DATA (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information [Line Items]
Net sales	$ 95,271	$ 87,425	$ 62,863	$ 74,929	$ 78,545	$ 83,108	$ 65,041	$ 73,590	$ 320,488	$ 300,284	$ 293,471
Gross earnings	39,066	32,421	24,217	27,364	33,337	31,579	24,698	27,699	123,068	117,313	114,887
Net earnings attributable to Weyco Group, Inc.	$ 8,090	$ 5,518	$ 2,207	$ 3,205	$ 6,804	$ 5,392	$ 2,205	$ 3,200	$ 19,020	$ 17,601	$ 18,957
Net earnings per share:
Basic (in dollars per share)	$ 0.75	$ 0.51	$ 0.20	$ 0.30	$ 0.63	$ 0.50	$ 0.20	$ 0.30	$ 1.76	$ 1.63	$ 1.75
Diluted (in dollars per share)	$ 0.75	$ 0.51	$ 0.20	$ 0.29	$ 0.62	$ 0.50	$ 0.20	$ 0.30	$ 1.75	$ 1.62	$ 1.73