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Note 8 - Segment Reporting - Schedule of Segment Reporting Information by Segment (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2024
Jun. 30, 2023
Revenue   $ 611,000   $ 956,000   $ 1,237,000 $ 1,994,000
Cost of revenues   491,000   834,000   1,120,000 1,596,000
Gross profit   $ 120,000   $ 122,000   $ 117,000 $ 398,000
Gross profit %   20.00%   13.00%   9.00% 20.00%
Operating expenses   $ 1,138,000   $ 1,213,000   $ 2,319,000 $ 2,692,000
Operating income (loss)   (1,018,000)   (1,091,000)   (2,202,000) (2,294,000)
Interest income, net   (44,000)   (42,000)   (92,000) (64,000)
Income (loss) before income taxes   (974,000)   (1,049,000)   (2,110,000) (2,230,000)
Income tax expense   9,000   0   9,000 38,000
Net loss $ (2,119,000) (983,000) $ (1,136,000) (1,049,000) $ (1,219,000) (2,119,000) (2,268,000)
Reportable Subsegments [Member]              
Operating expenses   153,000   (373,000)   305,000 (87,000)
Intersubsegment Eliminations [Member]              
Operating expenses   985,000   1,586,000   2,014,000 2,779,000
Managed Services [Member]              
Revenue   508,000   640,000   1,030,000 1,330,000
Operating Segments [Member] | Managed Services [Member]              
Revenue   508,000   640,000   1,030,000 1,330,000
Cost of revenues   331,000   430,000   700,000 890,000
Gross profit   $ 177,000   $ 210,000   $ 330,000 $ 440,000
Gross profit %   35.00%   33.00%   32.00% 33.00%
Operating expenses   $ 31,000   $ 3,000   $ 62,000 $ 3,000
Operating income (loss)   146,000   207,000   268,000 437,000
Interest income, net   (35,000)   (37,000)   (67,000) (34,000)
Income (loss) before income taxes   181,000   244,000   335,000 471,000
Income tax expense   6,000   0   6,000 7,000
Net loss   175,000   244,000   329,000 464,000
Operating Segments [Member] | Managed Services [Member] | Reportable Subsegments [Member]              
Operating expenses   31,000   3,000   62,000 3,000
Operating Segments [Member] | Managed Services [Member] | Intersubsegment Eliminations [Member]              
Operating expenses   0   0   0 0
Operating Segments [Member] | Collaboration Products [Member]              
Revenue   103,000   316,000   207,000 664,000
Cost of revenues   160,000   404,000   420,000 706,000
Gross profit   $ (57,000)   $ (88,000)   $ (213,000) $ (42,000)
Gross profit %   (55.00%)   (28.00%)   (103.00%) (6.00%)
Operating expenses   $ 122,000   $ (376,000)   $ 243,000 $ (90,000)
Operating income (loss)   (179,000)   288,000   (456,000) 48,000
Interest income, net   (9,000)   (5,000)   (25,000) (30,000)
Income (loss) before income taxes   (170,000)   293,000   (431,000) 78,000
Income tax expense   3,000   0   3,000 31,000
Net loss   (173,000)   293,000   (434,000) 47,000
Operating Segments [Member] | Collaboration Products [Member] | Reportable Subsegments [Member]              
Operating expenses   122,000   (376,000)   243,000 (90,000)
Operating Segments [Member] | Collaboration Products [Member] | Intersubsegment Eliminations [Member]              
Operating expenses   0   0   0 0
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]              
Revenue   0   0   0 0
Cost of revenues   0   0   0 0
Gross profit   $ 0   $ 0   $ 0 $ 0
Gross profit %      
Operating expenses   $ 985,000   $ 1,586,000   $ 2,014,000 $ 2,779,000
Operating income (loss)   (985,000)   (1,586,000)   (2,014,000) (2,779,000)
Interest income, net   0   0   0 0
Income (loss) before income taxes   (985,000)   (1,586,000)   (2,014,000) (2,779,000)
Income tax expense   0   0   0 0
Net loss   (985,000)   (1,586,000)   (2,014,000) (2,779,000)
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Reportable Subsegments [Member]              
Operating expenses   0   0   0 0
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Intersubsegment Eliminations [Member]              
Operating expenses   $ 985,000   $ 1,586,000   $ 2,014,000 $ 2,779,000