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Note 14 - Industry Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Revenue $ 11,606,836 $ 10,822,808 $ 34,509,580 $ 30,073,094  
Segment gross profit 6,938,612 5,939,808 20,291,011 16,997,102  
Segment income (loss) from operations (720,623) (3,789,099) (2,765,904) (11,779,688)  
Capital expenditures 2,165,515 8,416,893 20,172,669 9,851,833  
Depreciation and amortization 2,010,477 4,120,022 5,757,017 11,529,551  
Accounts receivable, net 3,585,966   3,585,966   $ 4,190,543
Goodwill 113,416,446   113,416,446   106,272,501
Total assets 479,905,013   479,905,013   436,908,210
Unallocated [Member]          
Revenue 0 0 0 0  
Segment gross profit 0 0 0 0  
Segment income (loss) from operations (970,227) (914,642) (3,481,620) (3,534,377)  
Capital expenditures 160,215 0 160,215 0  
Depreciation and amortization 0 0 0 0  
Accounts receivable, net 0   0   0
Goodwill 0   0   0
Total assets 191,986,063   191,986,063   166,693,489
Operating Segments [Member] | GIG [Member]          
Revenue 3,340,536 3,639,924 10,942,149 8,959,828  
Segment gross profit 1,582,085 1,614,604 5,574,918 4,217,803  
Segment income (loss) from operations (100,811) (595,974) 14,841 (2,652,352)  
Capital expenditures 0 5,943 0 43,704  
Depreciation and amortization 129,497 285,625 413,693 896,935  
Accounts receivable, net 1,027,009   1,027,009   1,213,823
Goodwill 8,719,294   8,719,294   8,719,294
Total assets 49,885,595   49,885,595   45,956,410
Operating Segments [Member] | LMH [Member]          
Revenue 7,121,957 7,182,884 20,991,755 21,113,266  
Segment gross profit 4,341,598 4,325,204 12,519,490 12,779,299  
Segment income (loss) from operations 323,815 (2,278,483) 277,440 (5,592,959)  
Capital expenditures 604,990 8,410,950 3,760,171 9,808,129  
Depreciation and amortization 1,671,045 3,834,397 4,960,939 10,632,616  
Accounts receivable, net 2,558,957   2,558,957   2,976,720
Goodwill 97,572,994   97,572,994   97,553,207
Total assets 220,449,123   220,449,123   224,258,311
Operating Segments [Member] | FIF AireBeam LLC [Member]          
Revenue 1,144,343 0 2,575,676 0  
Segment gross profit 1,014,929 0 2,196,603 0  
Segment income (loss) from operations 26,600 0 423,435 0  
Capital expenditures 1,400,310 0 16,252,283 0  
Depreciation and amortization 209,935 $ 0 382,385 $ 0  
Accounts receivable, net 0   0   0
Goodwill 7,124,158   7,124,158   0
Total assets $ 17,584,232   $ 17,584,232   $ 0