Note 9 - Operating Segment Information - Information Related to the Operations of the Company's Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 86,552	$ 73,087
Gross margin	30,268	24,875
Selling, General and Administrative Expense, Total	25,863	21,182
Other periodic pension cost	259	96
Interest expense	1,170	277
Income before taxes on income	2,976	3,320
Depreciation and amortization	2,060	1,626
Capital expenditures	1,723	1,055
Total assets	339,574	235,079	$ 335,086
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	(1,085)	(1,013)
Gross margin	(715)	(671)
Selling, General and Administrative Expense, Total	(715)	(671)
Other periodic pension cost
Interest expense
Income before taxes on income
Depreciation and amortization
Capital expenditures
Total assets	(23,145)	(62,833)
Uniforms and Related Products [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	58,679	48,125
Gross margin	20,318	16,536
Selling, General and Administrative Expense, Total	18,177	14,140
Other periodic pension cost	259	96
Interest expense	878	60
Income before taxes on income	1,004	2,240
Depreciation and amortization	1,488	1,065
Capital expenditures	1,158	685
Total assets	268,227	216,536
Remote Staffing Solutions [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	8,599	7,299
Gross margin	5,039	4,161
Selling, General and Administrative Expense, Total	3,119	2,512
Other periodic pension cost
Interest expense
Income before taxes on income	1,920	1,649
Depreciation and amortization	256	237
Capital expenditures	409	265
Total assets	31,794	24,296
Promotional Products [Member] | Operating Segments [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	20,359	18,676
Gross margin	5,626	4,849
Selling, General and Administrative Expense, Total	5,282	5,201
Other periodic pension cost
Interest expense	292	217
Income before taxes on income	52	(569)
Depreciation and amortization	316	324
Capital expenditures	156	105
Total assets	$ 62,698	$ 57,080