CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
NET SALES	$ 126,205	$ 118,398	$ 404,530	$ 344,998
COSTS OF OPERATIONS	113,409	105,431	362,241	308,583
GROSS PROFIT	12,796	12,967	42,289	36,415
OPERATING EXPENSES:
Selling, general and administrative expenses	7,524	7,231	22,612	21,361
Interest expense, net	291	178	699	374
Other (income) expense, net	(94)	31	227	148
Total operating expenses	7,721	7,440	23,538	21,883
INCOME BEFORE INCOME TAXES	5,075	5,527	18,751	14,532
INCOME TAX PROVISION	1,907	2,033	6,653	5,351
NET INCOME	3,168	3,494	12,098	9,181
NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS				66
NET INCOME ATTRIBUTABLE TO MILLER INDUSTRIES, INC.	$ 3,168	$ 3,494	$ 12,098	$ 9,247
BASIC INCOME PER COMMON SHARE (in dollars per share)	$ 0.28	$ 0.31	$ 1.07	$ 0.82
DILUTED INCOME PER COMMON SHARE (in dollars per share)	0.28	0.31	1.07	0.82
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.16	$ 0.15	$ 0.48	$ 0.45
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic (in shares)	11,341	11,302	11,329	11,296
Diluted (in shares)	11,368	11,354	11,367	11,354