The components of accumulated other comprehensive loss (Details) - USD ($) |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Beginning balance, value | $ 47,494,727 | $ 47,392,282 | $ 41,653,127 |
| Ending balance, value | 43,888,819 | 47,494,727 | 47,392,282 |
| Accumulated Foreign Currency Adjustment Attributable to Parent [Member] | |||
| Beginning balance, value | (700,000) | (709,000) | (764,000) |
| Net current period change | 56,000 | 9,000 | 55,000 |
| Ending balance, value | (644,000) | (700,000) | (709,000) |
| AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] | |||
| Beginning balance, value | 21,000 | 11,000 | 13,000 |
| Net current period change | (7,000) | 10,000 | (2,000) |
| Ending balance, value | 14,000 | 21,000 | 11,000 |
| AOCI Attributable to Parent [Member] | |||
| Beginning balance, value | (678,767) | (697,664) | (751,293) |
| Net current period change | 49,000 | 19,000 | 53,000 |
| Ending balance, value | $ (630,428) | $ (678,767) | $ (697,664) |
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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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