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Income Taxes (Narrative) (Q2) (Details) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Taxes [Line Items] |  |  |
Unrecognized tax benefits | $ 0 | $ 0 |
Federal net operating loss carryforwards |  | 33,800,000 |
Deferred tax asset | $ 0 | $ 65,000 | $ 130,000
Federal tax rate | 21.00% | 21.00% | 21.00%
Estimated annual effective tax rate | 0.00% |  |
Tax Period Between 2020 And 2037 [Member] |  |  |
Income Taxes [Line Items] |  |  |
Federal net operating loss carryforwards |  | $ 31,500,000 |
Indefinite Tax Period [Member] |  |  |
Income Taxes [Line Items] |  |  |
Federal net operating loss carryforwards |  | $ 2,300,000 |
Minimum [Member] | Tax Period Between 2020 And 2037 [Member] |  |  |
Income Taxes [Line Items] |  |  |
Federal net operating loss carryforwards expiration between, years | Jan. 01, 2020 | Dec. 31, 2020 |
Maximum [Member] | Tax Period Between 2020 And 2037 [Member] |  |  |
Income Taxes [Line Items] |  |  |
Federal net operating loss carryforwards expiration between, years | Dec. 31, 2037 | Dec. 31, 2037 |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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