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Consolidated Statement Of Changes In Stockholders' Equity - USD ($) $ in Thousands | Common Stock [Member] | Additional Paid-In Capital [Member] Series C Preferred Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings (Accumulated Deficit) [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Treasury Stock [Member] | Non-Voting Common Stock [Member] | Series C Preferred Stock [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2018 | $ 44 |  | $ 61,706 | $ (12,752) | $ (73) | $ (3,366) |  |  | $ 45,559
Net income |  |  |  | 3,961 |  |  |  |  | 3,961
Other comprehensive income (loss) |  |  |  |  | 87 |  |  |  | 87
Issuance of stock based incentive plan shares, net of forfeitures |  |  |  |  |  |  |  |  |
Restricted stock expense, net of forfeitures |  |  | 254 |  |  |  |  |  | 254
Exercise of warrants to common stock | 1 |  | 1,058 |  |  |  |  |  | 1,059
Accretion of discount and value of warrants exercised |  |  | (183) | 183 |  |  |  |  |
Balance at Jun. 30, 2019 | 45 |  | 62,835 | (8,608) | 14 | (3,366) |  |  | 50,920
Balance at Mar. 31, 2019 | 44 |  | 62,039 | (11,045) | (38) | (3,366) |  |  | 47,634
Net income |  |  |  | 2,280 |  |  |  |  | 2,280
Other comprehensive income (loss) |  |  |  |  | 52 |  |  |  | 52
Restricted stock expense, net of forfeitures |  |  | 138 |  |  |  |  |  | 138
Exercise of warrants to common stock | 1 |  | 815 |  |  |  |  |  | 816
Accretion of discount and value of warrants exercised |  |  | (157) | 157 |  |  |  |  |
Balance at Jun. 30, 2019 | 45 |  | 62,835 | (8,608) | 14 | (3,366) |  |  | 50,920
Balance at Dec. 31, 2019 | 54 |  | 86,903 | (2,932) | 28 | (3,389) |  |  | 80,664
Net income |  |  |  | 12,074 |  |  |  |  | 12,074
Other comprehensive income (loss) |  |  |  |  | 118 |  |  |  | 118
Restricted stock expense, net of forfeitures |  |  | 350 |  |  |  |  |  | 350
Stock options exercised |  |  | 36 |  |  |  |  |  | 36
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes |  |  |  |  |  | (27) |  |  | (27)
Purchase of treasury shares |  |  |  |  |  | (648) |  |  | (648)
Conversion of 12,607 shares of Series C preferred stock to 1,260,700 shares of non-voting common stock |  | $ (13) |  |  |  |  |  | $ 13 |
Balance at Jun. 30, 2020 | 54 |  | 87,276 | 9,142 | 146 | (4,064) | 13 |  | 92,567
Balance at Mar. 31, 2020 | 54 |  | 87,046 | (926) | 172 | (3,465) |  |  | 82,881
Net income |  |  |  | 10,068 |  |  |  |  | 10,068
Other comprehensive income (loss) |  |  |  |  | (26) |  |  |  | (26)
Restricted stock expense, net of forfeitures |  |  | 207 |  |  |  |  |  | 207
Stock options exercised |  |  | 36 |  |  |  |  |  | 36
Purchase of treasury shares |  |  |  |  |  | (599) |  |  | (599)
Conversion of 12,607 shares of Series C preferred stock to 1,260,700 shares of non-voting common stock |  | $ (13) |  |  |  |  |  | $ 13 |
Balance at Jun. 30, 2020 | $ 54 |  | $ 87,276 | $ 9,142 | $ 146 | $ (4,064) | $ 13 |  | $ 92,567

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