Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended												12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	May 02, 2018	Jan. 01, 2018	Dec. 01, 2017	Aug. 21, 2017	Mar. 01, 2016	Dec. 31, 2013
Advertising Expense														$ 700,000	$ 100,000	$ 100,000
Selling, General and Administrative Expense, Total														$ 96,710,000	70,592,000	65,124,000
Number of Reportable Segments														3
Goodwill, Ending Balance	$ 33,961,000				$ 16,032,000									$ 33,961,000	16,032,000
Amortization of Intangible Assets, Total														3,800,000	2,400,000	2,300,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	3,800,000													3,800,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	3,000,000													3,000,000
Finite-lived Intangible Assets Amortization Expense Year Six	2,200,000													2,200,000
Finite Lived Intangible Assets Amortization Expense Year Seven	$ 1,700,000													$ 1,700,000
Pension Plan Prior Service Costs Amortization Term														20 years
Impairment of Long-Lived Assets Held-for-use														$ 0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	3,498,367													3,498,367
Other Receivables	$ 1,744,000				1,848,000									$ 1,744,000	1,848,000
Revenue from Contract with Customer, Excluding Assessed Tax, Total	95,001,000	$ 95,870,000	$ 82,392,000	$ 73,087,000	72,450,000	$ 67,773,000	$ 65,604,000	$ 60,987,000	$ 64,686,000	$ 65,282,000	$ 64,660,000	$ 57,968,000		346,350,000	266,814,000	$ 252,596,000
Revenue, Remaining Performance Obligation, Amount	0													0
Contract with Customer, Asset, Net, Current, Total	49,236,000													49,236,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	3,800,000													3,800,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	3,800,000													3,800,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	3,800,000													3,800,000
Finite Lived Intangible Assets Amortization Expense Year Eight	1,700,000													1,700,000
Finite Lived Intangible Assets Amortization Expense Year Nine	1,700,000													1,700,000
Finite-lived Intangible Assets Amortization Expense Year Ten	1,700,000													1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Eleven	1,700,000													1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Twelve	1,700,000													1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Thirteen	1,700,000													1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Fourteen	1,700,000													1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Fifteen	1,700,000													1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Sixteen	1,700,000													1,700,000
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total														3,469,000
Accounting Standards Update 2014-09 [Member]
Selling, General and Administrative Expense, Total														706,000
Revenue from Contract with Customer, Excluding Assessed Tax, Total														$ 42,880,000
Cumulative Tax Adjustments Payment, Period														4 years
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Selling, General and Administrative Expense, Total														$ (48,000)
Revenue from Contract with Customer, Excluding Assessed Tax, Total														3,469,000
Contract with Customer, Asset, Net, Current, Total	49,236,000													49,236,000
Accounting Standards Update 2014-09 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption																		$ 11,200,000
Customer Concentration Risk [Member] | Largest [Member]
Other Receivables	1,600,000				1,500,000									$ 1,600,000	$ 1,500,000
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Concentration Risk, Percentage														7.40%	7.40%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Five Largest [Member]
Concentration Risk, Percentage														20.00%	28.00%
Accounts Receivable, Net, Total	$ 12,800,000				14,200,000									$ 12,800,000	$ 14,200,000
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Five Largest [Member]
Concentration Risk, Percentage														13.60%	19.00%	22.80%
Revenue from Contract with Customer, Including Assessed Tax														$ 47,100,000	$ 50,700,000	$ 57,600,000
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Largest [Member]
Concentration Risk, Percentage														5.80%	7.70%	7.60%
Revenue from Contract with Customer, Including Assessed Tax														$ 20,100,000	$ 20,600,000	$ 19,300,000
Minimum [Member] | Scenario, Forecast [Member] | Accounting Standards Update 2016-02 [Member]
Increase in Operating Liabilities													$ 2,000,000
Minimum [Member] | Building [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	2.50%													2.50%
Minimum [Member] | Building Improvements [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	2.50%													2.50%
Minimum [Member] | Machinery, Equipment and Fixtures [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	10.00%													10.00%
Minimum [Member] | Transportation Equipment [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	20.00%													20.00%
Maximum [Member] | Scenario, Forecast [Member] | Accounting Standards Update 2016-02 [Member]
Increase in Operating Liabilities													$ 4,000,000
Maximum [Member] | Building [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	5.00%													5.00%
Maximum [Member] | Building Improvements [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	20.00%													20.00%
Maximum [Member] | Machinery, Equipment and Fixtures [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	33.33%													33.33%
Maximum [Member] | Transportation Equipment [Member]
Property Plant and Equipment Depreciation Straight Line Percentage	33.33%													33.33%
HPI [Member] | Trade Names [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure																						$ 4,700,000
BAMKO [Member]
Goodwill, Ending Balance																					$ 6,994,000
Amortization of Intangible Assets, Total														$ 400,000	400,000	300,000
BAMKO [Member] | Trade Names [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure									$ 8,900,000							$ 8,900,000
Public Identity [Member]
Goodwill, Ending Balance																				$ 600,000
Public Identity [Member] | Trade Names [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure					500,000										500,000
Tangerine [Member]
Goodwill, Ending Balance																			$ 4,169,000
Amortization of Intangible Assets, Total														600,000	100,000
Tangerine [Member] | Trade Names [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure					$ 3,200,000										$ 3,200,000
CID Resources [Member]
Goodwill, Ending Balance																	$ 17,968,000
Amortization of Intangible Assets, Total														1,300,000
CID Resources [Member] | Trade Names [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	$ 14,200,000													14,200,000
Uniforms and Related Products [Member]
Goodwill, Ending Balance	22,100,000													22,100,000
Revenue from Contract with Customer, Excluding Assessed Tax, Total														238,166,000
Uniforms and Related Products [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total														$ 1,071,000
Uniforms and Related Products [Member] | Supplier Concentration Risk [Member] | Raw Materials [Member] | CHINA
Concentration Risk, Percentage														24.00%	34.00%	31.00%
Uniforms and Related Products [Member] | Supplier Concentration Risk [Member] | Raw Materials [Member] | Central America [Member]
Concentration Risk, Percentage														25.00%	34.00%	32.00%
Promotional Products [Member]
Goodwill, Ending Balance	$ 11,900,000													$ 11,900,000
Revenue from Contract with Customer, Excluding Assessed Tax, Total														80,912,000
Promotional Products [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total														$ 2,398,000
Promotional Products [Member] | Supplier Concentration Risk [Member] | Raw Materials [Member] | CHINA
Concentration Risk, Percentage														28.00%	67.00%	59.00%
Shipping and Handling [Member]
Selling, General and Administrative Expense, Total														$ 14,000,000	$ 10,900,000	$ 10,600,000
BAMKO [Member]
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest														99.00%