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Stock-based Compensation, Summary of Plans (Q3) (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 29, 2020 | Feb. 28, 2019 | Jan. 31, 2019 | Jan. 31, 2018 | Sep. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Mar. 31, 2019 | Mar. 31, 2018 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Jul. 25, 2018
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) |  |  |  |  |  |  |  |  |  |  |  | 42,168 | 18,906 |
Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation expense |  |  |  |  | $ 10 |  | $ 29 |  |  | $ 10 | $ 29 | $ 38 | $ 39 |
Period of recognition for unrecognized compensation cost |  |  |  |  |  |  |  |  |  | 5 months |  | 1 year 1 month 24 days |  |
2018 LTIP [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual term of option awards |  |  |  |  |  |  |  |  |  | 10 years |  | 10 years |  |
Maximum number of shares that can be awarded (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,293,109
Aggregate number of shares awarded to date under the plan (in shares) |  |  |  |  | 629,267 |  |  |  |  | 629,267 |  | 458,932 |  |
Shares available for awards (in shares) |  |  |  |  | 663,842 |  |  |  |  | 663,842 |  | 834,177 |  |
2018 LTIP [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost |  |  |  |  |  |  |  |  |  |  |  | $ 299 |  |
Period of recognition for unrecognized compensation cost |  |  |  |  |  |  |  |  |  |  |  | 14 months |  |
2018 LTIP [Member] | Directors [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) | 30,930 |  | 42,168 | 18,906 |  |  |  |  |  |  |  |  |  |
Stock based compensation expense |  |  |  |  |  | $ 45 |  | $ 52 | $ 45 |  |  |  |  |
2018 LTIP [Member] | Officers and Employees [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) | 140,218 | 428,797 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares forfeited (in shares) |  |  |  |  |  |  |  |  |  | 0 |  | 12,033 |  |
Vesting period of stock award | 2 years | 2 years |  |  |  |  |  |  |  |  |  | 2 years |  |
Stock based compensation expense |  |  |  |  | $ 90 |  |  |  |  | $ 251 |  | $ 216 |  |
Unrecognized compensation cost |  |  |  |  | $ 251 |  |  |  |  | $ 251 |  |  |  |
Period of recognition for unrecognized compensation cost |  |  |  |  |  |  |  |  |  | 17 months |  | 2 years |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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