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Note 1 - Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
May 02, 2018
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2013
USD ($)
Selling, General and Administrative Expense, Total $ 136,515 $ 107,282 $ 96,710      
Proceeds from Sale of Property, Plant, and Equipment, Total 5,284 5 0      
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property 2,164 0 0      
Amortization of Intangible Assets, Total 3,800 3,800 3,800      
Impairment of Long-Lived Assets Held-for-use $ 0 0 0      
Number of Reportable Segments 3          
Goodwill, Ending Balance $ 36,116 $ 36,292        
Pension Plan Prior Service Costs Amortization Term (Year)   20 years        
Customer Concentration Risk [Member] | Accounts Receivable [Member]            
Number of Customers 2          
Concentration Risk, Percentage 23.00% 10.00%        
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Five Largest [Member]            
Concentration Risk, Percentage 40.00% 23.00%        
Accounts Receivable, after Allowance for Credit Loss, Total $ 36,800 $ 18,600        
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Five Largest [Member]            
Concentration Risk, Percentage 10.00%          
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Largest [Member]            
Concentration Risk, Percentage 14.00%          
Uniforms and Related Products [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure $ 18,800          
Goodwill, Ending Balance 24,500          
Promotional Products [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure 12,600          
Goodwill, Ending Balance 11,600          
HPI [Member] | Trade Names [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure           $ 4,700
BAMKO [Member] | Trade Names [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure         $ 8,900  
Public Identity [Member] | Trade Names [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure     500      
Tangerine [Member] | Trade Names [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure     3,200      
CID Resources [Member]            
Amortization of Intangible Assets, Total 1,900 1,900 1,300      
Goodwill, Ending Balance       $ 20,323    
CID Resources [Member] | Trade Names [Member]            
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure     14,200      
Shipping and Handling [Member]            
Selling, General and Administrative Expense, Total $ 17,600 $ 14,500 $ 14,000