XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.21.2

EQUITY INCENTIVE PLAN (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
EQUITY INCENTIVE PLAN [Abstract] |
Summary of stock option activity | The following table summarizes stock option activity under our plans during the six months ended June 30, 2021: ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | Number of |  | Weighted-Average
​ | ​ | Options | ​ | Exercise Price
Outstanding at January 1, 2021 |  | 822,992 | ​ | $ | 4.46
Granted |  | 597,347 | ​ |  | 2.17
Forfeited |  | (58,341) | ​ |  | 3.02
Outstanding at June 30, 2021 |  | 1,361,998 | ​ | $ | 3.52
Exercisable at June 30, 2021 |  | 541,544 | ​ | $ | 5.19

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration