Note 7 - Operating Segment Information (Details) - Information Related to Operations of Operating Segments (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 44,184,000	$ 30,599,000	$ 106,023,000	$ 88,442,000
Gross margin	15,040,000	10,032,000	37,531,000	29,156,000
Selling and administrative expenses	12,817,000	8,334,000	31,476,000	25,336,000
Interest expense	95,000	6,000	110,000	24,000
Income before income taxes	2,128,000	1,692,000	5,945,000	3,796,000
Depreciation and amortization	911,000	561,000	1,620,000	1,740,000
Capital expenditures	157,000	155,000	1,122,000	830,000
Total assets	127,325,000	80,720,000	127,325,000	80,720,000	78,913,000
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(942,000)	(923,000)	(2,752,000)	(2,823,000)
Gross margin	(617,000)	(574,000)	(1,817,000)	(1,792,000)
Selling and administrative expenses	(617,000)	(574,000)	(1,817,000)	(1,792,000)
Total assets	(1,431,000)	(1,443,000)	(1,431,000)	(1,443,000)
Uniform And Related Products [Member]
Segment Reporting Information [Line Items]
Net sales	42,758,000	29,698,000	102,067,000	86,177,000
Gross margin	14,215,000	9,533,000	35,211,000	27,954,000
Selling and administrative expenses	12,580,000	8,353,000	30,825,000	25,484,000
Interest expense	95,000	6,000	110,000	24,000
Income before income taxes	1,540,000	1,174,000	4,276,000	2,446,000
Depreciation and amortization	858,000	521,000	1,469,000	1,620,000
Capital expenditures	115,000	147,000	940,000	648,000
Total assets	122,383,000	75,230,000	122,383,000	75,230,000
Remote Staffing Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	2,368,000	1,824,000	6,708,000	5,088,000
Gross margin	1,442,000	1,073,000	4,137,000	2,994,000
Selling and administrative expenses	854,000	555,000	2,468,000	1,644,000
Income before income taxes	588,000	518,000	1,669,000	1,350,000
Depreciation and amortization	53,000	40,000	151,000	120,000
Capital expenditures	42,000	8,000	182,000	182,000
Total assets	$ 6,373,000	$ 6,933,000	$ 6,373,000	$ 6,933,000