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Note 6 - Business Acquisitions - Separately Recognized Transactions (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Amortization of intangible assets acquired for the year |  | $ 772,478
Revenues since the acquisition date included in the consolidated statement of operations |  | 2,234,155
Earnings since the acquisition date included in the consolidated statement of operations |  | (156,995)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 185,572
Surety Support Services, Inc [Member] |  |
Amortization of intangible assets acquired for the year |  | 27,497
Revenues since the acquisition date included in the consolidated statement of operations |  | 182,907
Earnings since the acquisition date included in the consolidated statement of operations |  | (56,548)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 28,293
LMSE [Member] |  |
Amortization of intangible assets acquired for the year | $ 688,889 |
Revenues since the acquisition date included in the consolidated statement of operations | 853,018 |
Earnings since the acquisition date included in the consolidated statement of operations | (210,647) |
Costs of acquisition included in professional fees in the consolidated statement of operations | 170,856 |
Clear Channel Outdoor Inc. [Member] |  |
Amortization of intangible assets acquired for the year |  | 324,510
Revenues since the acquisition date included in the consolidated statement of operations |  | 863,463
Earnings since the acquisition date included in the consolidated statement of operations |  | (20,972)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 23,218
South Coast Surety Insurance Services, LLC [Member] |  |
Amortization of intangible assets acquired for the year |  | 63,240
Revenues since the acquisition date included in the consolidated statement of operations |  | 362,871
Earnings since the acquisition date included in the consolidated statement of operations |  | (101,858)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 64,945
LMM [Member] |  |
Amortization of intangible assets acquired for the year | 900,800 |
Revenues since the acquisition date included in the consolidated statement of operations | 1,947,895 |
Earnings since the acquisition date included in the consolidated statement of operations | (418,705) |
Costs of acquisition included in professional fees in the consolidated statement of operations | 177,658 |
Hartlind Outdoor LLC [Member] |  |
Amortization of intangible assets acquired for the year |  | 55,389
Revenues since the acquisition date included in the consolidated statement of operations |  | 321,745
Earnings since the acquisition date included in the consolidated statement of operations |  | 142,693
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 17,395
Free State Bonds Inc. [Member] |  |
Amortization of intangible assets acquired for the year |  | 806
Revenues since the acquisition date included in the consolidated statement of operations |  |
Earnings since the acquisition date included in the consolidated statement of operations |  | (18,365)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 728
LMO [Member] |  |
Amortization of intangible assets acquired for the year | 1,603,300 |
Revenues since the acquisition date included in the consolidated statement of operations | 4,468,421 |
Earnings since the acquisition date included in the consolidated statement of operations | (93,469) |
Costs of acquisition included in professional fees in the consolidated statement of operations | 195,325 |
Southeastern US [Member] |  |
Amortization of intangible assets acquired for the year |  | 301,036
Revenues since the acquisition date included in the consolidated statement of operations |  | 503,169
Earnings since the acquisition date included in the consolidated statement of operations |  | (101,945)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 50,993
Surety Support Services, South Cost Surety Insurances Services LLC, and Free State Bonds Inc. [Member] |  |
Amortization of intangible assets acquired for the year |  | 91,543
Revenues since the acquisition date included in the consolidated statement of operations |  | 545,778
Earnings since the acquisition date included in the consolidated statement of operations |  | (176,771)
Costs of acquisition included in professional fees in the consolidated statement of operations |  | 93,966
LMSE, LMM and LMO [Member] |  |
Amortization of intangible assets acquired for the year | 3,192,989 |
Revenues since the acquisition date included in the consolidated statement of operations | 7,269,334 |
Earnings since the acquisition date included in the consolidated statement of operations | (722,821) |
Costs of acquisition included in professional fees in the consolidated statement of operations | $ 543,839 |
Clear Channel Outdoor, Hartlind and Southeastern US [Member] |  |
Amortization of intangible assets acquired for the year |  | 680,935
Revenues since the acquisition date included in the consolidated statement of operations |  | 1,688,377
Earnings since the acquisition date included in the consolidated statement of operations |  | 19,776
Costs of acquisition included in professional fees in the consolidated statement of operations |  | $ 91,606

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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