| Note 13 - Industry, Segment and Geographic Financial Information (Tables)
 | 12 Months Ended | 
| Dec. 31, 2024 | 
|---|
| Notes Tables |  | 
| Schedule of Segment Reporting Information, by Segment [Table Text Block] | 
|  |  | Year ended |  |  
|  |  | December 31, |  |  
|  |  | 2024 |  |  | 2023 |  |  
| Net Sales: |  |  |  |  |  |  |  
| Distribution |  | $ | 441,940 |  |  | $ | 325,262 |  |  
| Solutions |  |  | 23,667 |  |  |  | 26,751 |  |  
|  |  |  | 465,607 |  |  |  | 352,013 |  |  
| Cost of Sales: |  |  |  |  |  |  |  
| Distribution |  | $ | 363,648 |  |  | $ | 271,899 |  |  
| Solutions |  |  | 10,879 |  |  |  | 15,867 |  |  
|  |  |  | 374,527 |  |  |  | 287,766 |  |  
| Direct Costs: |  |  |  |  |  |  |  
| Distribution |  | $ | 31,888 |  |  | $ | 22,467 |  |  
| Solutions |  |  | 5,455 |  |  |  | 5,238 |  |  
|  |  |  | 37,343 |  |  |  | 27,705 |  |  
| Segment Income: (1) |  |  |  |  |  |  |  
| Distribution |  | $ | 46,404 |  |  | $ | 30,896 |  |  
| Solutions |  |  | 7,333 |  |  |  | 5,646 |  |  
| Segment Income |  |  | 53,737 |  |  |  | 36,542 |  |  
|  |  |  |  |  |  |  |  
| General and administrative |  | $ | 19,165 |  |  | $ | 16,625 |  |  
| Acquisition related costs |  |  | 2,311 |  |  |  | 629 |  |  
| Depreciation and amortization expense |  |  | 4,269 |  |  |  | 2,798 |  |  
| Interest, net |  |  | 917 |  |  |  | 927 |  |  
| Foreign currency transaction loss |  |  | (273 | ) |  |  | (636 | ) |  
| Change in fair value of acquisition contingent consideration |  |  | 3,618 |  |  |  | — |  |  
| Income before taxes |  | $ | 25,018 |  |  | $ | 16,781 |  |  
|  |  | As of |  |  | As of |  |  
|  |  | December 31, |  |  | December 31, |  |  
| Selected Assets by Segment: |  | 2024 |  |  | 2023 |  |  
|  |  |  |  |  |  |  |  
| Distribution |  | $ | 394,809 |  |  | $ | 242,927 |  |  
| Solutions |  |  | 21,882 |  |  |  | 37,992 |  |  
| Segment Select Assets |  |  | 416,691 |  |  |  | 280,919 |  |  
| Corporate Assets |  |  | 52,488 |  |  |  | 54,179 |  |  
| Total Assets |  | $ | 469,179 |  |  | $ | 335,098 |  |  | 
| Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] | 
|  |  | Year ended |  |  
|  |  | December 31, 2024 |  |  
|  |  | Distribution |  |  | Solutions |  |  | Total |  |  
| Geography |  |  |  |  |  |  |  |  |  |  |  |  
| USA |  | $ | 333,197 |  |  | $ | 8,652 |  |  | $ | 341,849 |  |  
| Europe and United Kingdom |  |  | 82,039 |  |  |  | 13,889 |  |  |  | 95,928 |  |  
| Canada |  |  | 26,704 |  |  |  | 1,126 |  |  |  | 27,830 |  |  
| Total net sales |  | $ | 441,940 |  |  | $ | 23,667 |  |  | $ | 465,607 |  |  
|  |  |  |  |  |  |  |  |  |  |  
| Timing of Revenue Recognition |  |  |  |  |  |  |  |  |  |  |  |  
| Transferred at a point in time where the Company is principal (1) |  | $ | 399,360 |  |  | $ | 15,847 |  |  | $ | 415,207 |  |  
| Transferred at a point in time where the Company is agent (2) |  |  | 42,580 |  |  |  | 7,820 |  |  |  | 50,400 |  |  
| Total net sales |  | $ | 441,940 |  |  | $ | 23,667 |  |  | $ | 465,607 |  |  
|  |  | Year ended |  |  
|  |  | December 31, 2023 |  |  
|  |  | Distribution |  |  | Solutions |  |  | Total |  |  
| Geography |  |  |  |  |  |  |  |  |  |  |  |  
| USA |  | $ | 244,261 |  |  | $ | 15,425 |  |  | $ | 259,686 |  |  
| Europe and United Kingdom |  |  | 57,253 |  |  |  | 10,167 |  |  |  | 67,420 |  |  
| Canada |  |  | 23,748 |  |  |  | 1,159 |  |  |  | 24,907 |  |  
| Total net sales |  | $ | 325,262 |  |  | $ | 26,751 |  |  | $ | 352,013 |  |  
|  |  |  |  |  |  |  |  |  |  |  
| Timing of Revenue Recognition |  |  |  |  |  |  |  |  |  |  |  |  
| Transferred at a point in time where the Company is principal (1) |  | $ | 286,051 |  |  | $ | 19,853 |  |  | $ | 305,904 |  |  
| Transferred at a point in time where the Company is agent (2) |  |  | 39,211 |  |  |  | 6,898 |  |  |  | 46,109 |  |  
| Total net sales |  | $ | 325,262 |  |  | $ | 26,751 |  |  | $ | 352,013 |  |  | 
| Long-Lived Assets by Geographic Areas [Table Text Block] | 
|  |  | December 31, |  |  | December 31, |  |  
| Identifiable Assets by Geographic Areas |  | 2024 |  |  | 2023 |  |  
| USA |  | $ | 278,957 |  |  | $ | 171,080 |  |  
| Canada |  |  | 34,352 |  |  |  | 23,994 |  |  
| Europe and United Kingdom |  |  | 155,870 |  |  |  | 140,024 |  |  
| Total |  | $ | 469,179 |  |  | $ | 335,098 |  |  |