Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands |
Preferred Stock [Member] |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
AOCI Attributable to Parent [Member] |
Treasury Stock [Member] |
Total |
|---|---|---|---|---|---|---|---|
| BALANCE (in shares) at Dec. 31, 2019 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Dec. 31, 2019 | $ 0 | $ 13 | $ 86,102 | $ 16,117 | $ (1,264) | $ (25,904) | $ 75,064 |
| Net income (loss) | 0 | 0 | 0 | (573) | 0 | 0 | (573) |
| Dividends declared | 0 | 0 | 0 | (2,285) | 0 | 0 | (2,285) |
| Foreign currency translation adjustments | 0 | 0 | 0 | 0 | (222) | 0 | (222) |
| Unrealized gains on available-for-sale securities | $ 0 | $ 0 | 0 | 0 | (87) | $ 0 | (87) |
| BALANCE (in shares) at Mar. 31, 2020 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Mar. 31, 2020 | $ 0 | $ 13 | 86,102 | 13,259 | (1,573) | $ (25,904) | 71,897 |
| BALANCE (in shares) at Dec. 31, 2019 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Dec. 31, 2019 | $ 0 | $ 13 | 86,102 | 16,117 | (1,264) | $ (25,904) | 75,064 |
| Net income (loss) | (539) | ||||||
| Foreign currency translation adjustments | (138) | ||||||
| Unrealized gains on available-for-sale securities | 18 | ||||||
| BALANCE (in shares) at Jun. 30, 2020 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Jun. 30, 2020 | $ 0 | $ 13 | 86,102 | 11,008 | (1,384) | $ (25,904) | 69,835 |
| BALANCE (in shares) at Mar. 31, 2020 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Mar. 31, 2020 | $ 0 | $ 13 | 86,102 | 13,259 | (1,573) | $ (25,904) | 71,897 |
| Net income (loss) | 0 | 0 | 0 | 34 | 0 | 0 | 34 |
| Dividends declared | 0 | 0 | 0 | (2,285) | 0 | (2,285) | |
| Foreign currency translation adjustments | 0 | 0 | 0 | 0 | 84 | 0 | 84 |
| Unrealized gains on available-for-sale securities | $ 0 | $ 0 | 0 | 0 | 105 | $ 0 | 105 |
| BALANCE (in shares) at Jun. 30, 2020 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Jun. 30, 2020 | $ 0 | $ 13 | 86,102 | 11,008 | (1,384) | $ (25,904) | 69,835 |
| BALANCE (in shares) at Dec. 31, 2020 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Dec. 31, 2020 | $ 0 | $ 13 | 86,102 | 7,822 | (336) | $ (25,904) | 67,697 |
| Net income (loss) | 0 | 0 | 0 | 153 | 0 | 0 | 153 |
| Dividends declared | 0 | 0 | 0 | (2,285) | 0 | 0 | (2,285) |
| Foreign currency translation adjustments | 0 | 0 | 0 | 0 | (182) | 0 | (182) |
| Unrealized gains on available-for-sale securities | $ 0 | $ 0 | 0 | 0 | (7) | $ 0 | (7) |
| BALANCE (in shares) at Mar. 31, 2021 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Mar. 31, 2021 | $ 0 | $ 13 | 86,102 | 5,690 | (525) | $ (25,904) | 65,376 |
| BALANCE (in shares) at Dec. 31, 2020 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Dec. 31, 2020 | $ 0 | $ 13 | 86,102 | 7,822 | (336) | $ (25,904) | 67,697 |
| Net income (loss) | 382 | ||||||
| Foreign currency translation adjustments | (86) | ||||||
| Unrealized gains on available-for-sale securities | 9 | ||||||
| BALANCE (in shares) at Jun. 30, 2021 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Jun. 30, 2021 | $ 0 | $ 13 | 86,102 | 3,634 | (413) | $ (25,904) | 63,432 |
| BALANCE (in shares) at Mar. 31, 2021 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Mar. 31, 2021 | $ 0 | $ 13 | 86,102 | 5,690 | (525) | $ (25,904) | 65,376 |
| Net income (loss) | 0 | 0 | 0 | 229 | 0 | 0 | 229 |
| Dividends declared | 0 | 0 | 0 | (2,285) | 0 | 0 | (2,285) |
| Foreign currency translation adjustments | 0 | 0 | 0 | 0 | 96 | 0 | 96 |
| Unrealized gains on available-for-sale securities | $ 0 | $ 0 | 0 | 0 | 16 | $ 0 | 16 |
| BALANCE (in shares) at Jun. 30, 2021 | 0 | 12,979,414 | (1,556,875) | ||||
| Balance at Jun. 30, 2021 | $ 0 | $ 13 | $ 86,102 | $ 3,634 | $ (413) | $ (25,904) | $ 63,432 |