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Note 14 - Industry Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Revenue $ 11,492,564 $ 10,139,561 $ 22,902,744 $ 19,250,286  
Segment gross profit 6,472,058 5,943,688 13,352,399 11,057,294  
Segment income (loss) from operations (865,309) (3,202,639) (2,045,281) (7,990,589)  
Capital expenditures 1,257,333 551,402 17,534,291 1,434,940  
Depreciation and amortization 1,963,209 3,717,694 3,746,540 7,409,529  
Accounts receivable, net 4,105,785   4,105,785   $ 4,190,543
Goodwill 113,686,446   113,686,446   106,272,501
Total assets 468,881,186   468,881,186   436,908,210
Unallocated [Member]          
Revenue 0 0 0 0  
Segment gross profit 0 0 0 0  
Segment income (loss) from operations (893,507) (950,547) (2,511,393) (2,619,735)  
Capital expenditures 0 0 0 0  
Depreciation and amortization 0 0 0 0  
Accounts receivable, net 0   0   0
Goodwill 0   0   0
Total assets 184,354,694   184,354,694   166,693,489
Operating Segments [Member] | GIG [Member]          
Revenue 3,674,450 2,989,569 7,601,613 5,319,904  
Segment gross profit 1,569,532 1,558,586 3,992,833 2,603,199  
Segment income (loss) from operations (184,734) (738,364) 115,652 (2,056,378)  
Capital expenditures 0 (194) 0 37,761  
Depreciation and amortization 142,250 295,248 284,196 611,310  
Accounts receivable, net 1,402,945   1,402,945   1,213,823
Goodwill 8,719,294   8,719,294   8,719,294
Total assets 45,974,398   45,974,398   45,956,410
Operating Segments [Member] | LMH [Member]          
Revenue 6,654,032 7,149,992 13,869,798 13,930,382  
Segment gross profit 3,912,680 4,385,102 8,177,892 8,454,095  
Segment income (loss) from operations (118,493) (1,513,728) (46,375) (3,314,476)  
Capital expenditures 117,851 551,596 2,715,381 1,397,179  
Depreciation and amortization 1,648,509 3,422,446 3,289,894 6,798,219  
Accounts receivable, net 2,702,840   2,702,840   2,976,720
Goodwill 97,572,994   97,572,994   97,553,207
Total assets 222,240,073   222,240,073   224,258,311
Operating Segments [Member] | FIF AireBeam LLC [Member]          
Revenue 1,164,082 0 1,431,333 0  
Segment gross profit 989,846 0 1,181,674 0  
Segment income (loss) from operations 331,425 0 396,835 0  
Capital expenditures 1,139,482 0 14,818,910 0  
Depreciation and amortization 172,450 $ 0 172,450 $ 0  
Accounts receivable, net 0   0   0
Goodwill 7,394,158   7,394,158   0
Total assets $ 16,312,021   $ 16,312,021   $ 0