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Equity Incentive Plans (Narrative) (Details) - USD ($) |  |  | 9 Months Ended
--- | --- | --- | ---
Jun. 14, 2019 | Dec. 14, 2018 | Sep. 30, 2020 | Sep. 30, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Options granted |  |  |  | 98,875
Shares underlying unexercised options |  |  | 531,612 |
Expected future compensation expense, unexercised options |  |  | $ 1,000,000.0 |
Exercisable - Number of Options |  |  | 660,736 | 268,633
Options [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected future compensation expense, weighted average period for recognition |  |  | 4 years 9 months 18 days |
Restricted Stock [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected future expenses relating to non-vested restricted shares |  |  | $ 279,000 |
Expected future compensation expense, weighted average period for recognition |  |  | 5 months 12 days |
2018 Equity Incentive Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Shares authorized for issuance |  |  | 1,000,000 |
2011 Stock Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Shares authorized for issuance |  |  | 900,000 |
Directors [Member] | 2018 Equity Incentive Plan [Member] | Options [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Options granted | 68,750 | 300,000 |  |
Vesting period | 2 years | 2 years |  |
Directors [Member] | 2018 Equity Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Restricted stock issued | 33,110 | 54,000 |  |
Vesting period | 2 years | 2 years |  |
Directors [Member] | Tranche 1 And 2 [Member] | 2018 Equity Incentive Plan [Member] | Options [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Vesting percentage | 50.00% | 50.00% |  |
Executive Officers [Member] | 2018 Equity Incentive Plan [Member] | Options [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Options granted | 30,125 |  |  |
Vesting period | 2 years |  |  |
Executive Officers [Member] | 2018 Equity Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Restricted stock issued | 14,508 | 13,321 |  |
Vesting period | 2 years | 2 years |  |

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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=116856206&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + 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=116856206&loc=d3e5070-113901 + Details
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