Note 6 - Information Related to the Operations of the Company's Operating Segments (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Uniforms and Related Products [Member]
Net sales	$ 61,062,000	$ 51,256,000	$ 115,545,000	$ 95,044,000
Gross margin	19,881,000	17,026,000	38,158,000	31,441,000
Selling and administrative expenses	16,050,000	12,317,000	31,678,000	24,250,000
Interest expense	192,000	129,000	340,000	265,000
Income before taxes on income	3,639,000	4,580,000	6,140,000	6,926,000
Depreciation and amortization	1,125,000	864,000	2,135,000	1,748,000
Capital expenditures	1,042,000	569,000	1,895,000	1,262,000
Total assets	176,242,000	138,079,000	176,242,000	138,079,000
Remote Staffing Solutions [Member]
Net sales	4,500,000	3,782,000	8,858,000	7,248,000
Gross margin	2,466,000	2,110,000	4,782,000	4,106,000
Selling and administrative expenses	1,490,000	1,296,000	2,897,000	2,415,000
Interest expense
Income before taxes on income	976,000	814,000	1,885,000	1,691,000
Depreciation and amortization	91,000	73,000	184,000	142,000
Capital expenditures	1,783,000	624,000	3,637,000	837,000
Total assets	18,944,000	11,225,000	18,944,000	11,225,000
Intersegment Eliminations [Member]
Net sales	(902,000)	(922,000)	(1,775,000)	(1,829,000)
Gross margin	(584,000)	(605,000)	(1,156,000)	(1,220,000)
Selling and administrative expenses	(584,000)	(605,000)	(1,156,000)	(1,220,000)
Interest expense
Income before taxes on income
Depreciation and amortization
Capital expenditures
Total assets	(6,761,000)	(1,956,000)	(6,761,000)	(1,956,000)
Net sales	64,660,000	54,116,000	122,628,000	100,463,000
Gross margin	21,763,000	18,531,000	41,784,000	34,327,000
Selling and administrative expenses	16,956,000	13,008,000	33,419,000	25,445,000
Interest expense	192,000	129,000	340,000	265,000
Income before taxes on income	4,615,000	5,394,000	8,025,000	8,617,000
Depreciation and amortization	1,216,000	937,000	2,333,000	1,890,000
Capital expenditures	2,825,000	1,193,000	5,527,000	2,099,000
Total assets	$ 188,425,000	$ 147,348,000	$ 188,425,000	$ 147,348,000	$ 151,731,000