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8. Stockholders' Equity (Details Narrative) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Dividends declared |  |  | $ 2,153,349 | $ 2,134,759
Stock-based compensation expense related to stock options is net of estimated forfeitures | $ 0 | $ 1,000 | $ 1,000 | 4,000
Closing price of common stock | $ 8.65 |  | $ 8.65 |
Total intrinsic value of options exercised |  |  | $ (6,270) |
Total intrinsic value of options forfeited | $ 13,588 |  | 13,588 |
Stock-based compensation, restricted stock awards | $ 399,000 | $ 175,000 | $ 708,000 | $ 281,000
2014 Plan [Member] |  |  |  |
Shares reserved | 427,476 |  | 427,476 |

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