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Stock-Based Compensation, Stock Option Activity (FY) (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding at beginning of period (in shares) |  |  | 455,000 | 537,500 | 537,500 | 537,500
Granted during period (in shares) | 0 | 0 | 0 | 0 | 0 | 0
Exercised during period (in shares) |  |  | 0 | 0 | 0 | 0
Forfeited or expired during period (in shares) |  |  | (5,000) | (82,500) | (82,500) | 0
Outstanding at end of period (in shares) | 450,000 | 455,000 | 450,000 | 455,000 | 455,000 | 537,500
Exercisable at end of period (in shares) | 360,000 | 275,000 | 360,000 | 275,000 | 275,000 | 267,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding at beginning of period (in dollars per share) |  |  | $ 1.67 | $ 2.19 | $ 2.19 | $ 2.19
Granted during period (in dollars per share) |  |  | 0 | 0 | 0 | 0
Exercised during period (in dollars per share) |  |  | 0 | 0 | 0 | 0
Forfeited or expired during period (in dollars per share) |  |  | 6.00 | 4.89 | 4.98 | 0
Outstanding at end of period (in dollars per share) | $ 1.62 | $ 1.67 | 1.62 | 1.67 | 1.67 | 2.19
Exercisable at end of period (in dollars per share) | $ 1.62 | $ 1.70 | $ 1.62 | $ 1.70 | $ 1.70 | $ 2.71
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] |  |  |  |  |  |
Stock based compensation expense | $ 10 | $ 29 | $ 10 | $ 29 | $ 38 | $ 39
Unrecognized compensation cost | $ 16 |  | $ 16 |  | $ 46 |
Period of recognition for unrecognized compensation cost |  |  | 5 months |  | 1 year 1 month 24 days |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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