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Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands |  | 1 Months Ended |
--- | --- | --- | ---
Aug. 20, 2018 | Jun. 30, 2019 USD ($) | Jan. 01, 2019 USD ($)
Reverse stock split | 1-for-5.5 |  |
Reverse stock split ratio | 5.5 |  |
Balances of loans of all other classes while impairment evaluation |  | $ 250 |
Investment tax credit |  | 894 |
Operating lease right-of-use assets |  | 1,967 |
Operating lease liabilities |  | $ 2,163 |
Accounting Standards Update 2016-02 [Member] |  |  |
Operating lease right-of-use assets |  |  | $ 2,400
Operating lease liabilities |  |  | $ 2,400

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