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Note 13 - Segment Reporting - Segment Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Facilities $ 30,637 $ 27,410
Facilities 914 (831)
Facilities design and maintenance 228 445
Interest expense 964 430
Total assets 31,406 19,281
Facilities Segment [Member]    
Facilities 10,208 7,075
Facilities Segment [Member] | Operating Segments [Member]    
Facilities 10,209 7,075
Facilities 1,595 499
Facilities design and maintenance 119 208
Interest expense 370 251
Total assets 675 851
System Integration Services Segment [Member]    
Facilities 20,429 20,335
System Integration Services Segment [Member] | Operating Segments [Member]    
Facilities 20,428 20,335
Facilities (681) (1,330)
Facilities design and maintenance 109 237
Interest expense 594 179
Total assets 3,790 3,178
Other Segments [Member] | Operating Segments [Member]    
Total assets $ 26,941 $ 15,252