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Note 17 - Equity Programs (Details Textual)
$ in Thousands
12 Months Ended
Oct. 02, 2015
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Sep. 03, 2021
USD ($)
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares) | shares 550,000        
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in shares) | shares   360,212      
Treasury Stock, Shares, Acquired (in shares) | shares   0 15,000 109,505  
Treasury Stock, Value, Acquired, Cost Method     $ 145 $ 1,522  
At-the-Market Equity Program [Member]          
Stock Issuance Program, Authorized Amount         $ 50,000
Stock Issuance Program, Gross Proceeds, Percent         2.00%
Stock Issued During Period, Shares, New Issues (in shares) | shares   0      
ABL Credit Facility [Member]          
Unrestricted Common Stock Purchases, Maximum, Value $ 5,000        
ABL Credit Facility [Member] | Stock Repurchases Value Exceeds 5.0 Million, Option 1 [Member] | Minimum [Member]          
Line of Credit Facility Covenant Terms Percentage of Revolver Commitments 20.00%        
Balance Required for Compliance with Revolver Commitments   $ 95,000      
ABL Credit Facility [Member] | Stock Repurchases Value Exceeds 5.0 Million, Option 2 [Member] | Minimum [Member]          
Line of Credit Facility Covenant Terms Percentage of Revolver Commitments 15.00%        
Balance Required for Compliance with Revolver Commitments   $ 71,300      
Line of Credit Facility Covenant Terms EBITDA Ratio 1.00