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Note 1 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Jun. 30, 2021
Notes Tables  
Disaggregation of Revenue [Table Text Block]
  

Twelve Months Ended

 

(In thousands)

 

June 30, 2021

 
  

Lighting

Segment

  

Display

Solutions

Segment

 

Timing of revenue recognition

        

Products and services transferred at a point in time

 $165,062  $66,123 

Products and services transferred over time

  23,938   60,489 
  $189,000  $126,612 
         

Type of Product and Services

        

LED lighting, digital signage solutions, electronic circuit boards

 $164,778  $35,976 

Poles and other display solutions elements

  22,492   61,919 

Project management, installation services, shipping and handling

  1,730   28,717 
  $189,000  $126,612 
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

(In thousands)

 

June 30, 2021

  

June 30, 2020

 
         

Accounts receivable

 $57,941  $38,109 

Less: Allowance for doubtful accounts

  (256)  (273)

Accounts receivable, net

 $57,685  $37,836 
Property, Plant and Equipment [Table Text Block]

Buildings (in years)

 28-40 

Machinery and equipment (in years)

 3-10 

Computer software (in years)

 3-8 
Schedule of Product Warranty Liability [Table Text Block]

(In thousands)

 

June 30, 2021

  

June 30, 2020

 
         

Balance at beginning of the period

 $6,956  $7,687 

Additions from company acquired

  248   - 

Additions charged to expense

  859   2,482 

Deductions for repairs and replacements

  (2,768)  (3,213)

Balance at end of the period

 $5,295  $6,956