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Stock-Based Compensation, Restricted Stock and Common Stock Awards (FY) (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 | Feb. 28, 2018 | Jan. 31, 2018 | Apr. 30, 2017 | Mar. 31, 2016 | Sep. 30, 2020 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018 | Sep. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued for services (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 42,168 | 18,906
2008 LTIP [Member] | Chief Executive Officer [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) |  |  |  |  |  |  | 120,483 |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |
Stock based compensation expense |  |  |  |  |  |  |  |  |  | $ 3 | $ 26 |  | $ 147 | $ 54
Shares issued for services (in shares) |  |  |  | 97,195 |  | 129,270 |  |  |  |  |  |  |  |
Number of shares of common stock used in calculating fair market value of common stock when considering cash payment for each RSU (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 1 |
2008 LTIP [Member] | Chief Executive Officer [Member] | Restricted Stock [Member] | Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |
2008 LTIP [Member] | Chief Executive Officer [Member] | Restricted Stock [Member] | Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) |  |  |  |  |  |  | 20,483 |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |
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] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation expense |  |  |  |  |  |  |  |  | $ 45 | $ 52 | $ 45 |  |  |
Shares issued for services (in shares) | 30,930 |  | 42,168 |  | 18,906 |  |  |  |  |  |  |  |  |
2018 LTIP [Member] | Directors [Member] | Common Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation expense | $ 45 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued for services (in shares) | 30,930 |  |  |  |  |  |  |  |  |  |  |  |  |
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 |
Award vesting period | 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 |
2018 LTIP [Member] | Officers and Employees [Member] | Restricted Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded (in shares) | 140,218 |  |  |  |  |  |  |  |  |  |  |  |  |

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