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Equity - Equity Incentive Plan (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jun. 17, 2021	Dec. 31, 2022	Dec. 31, 2021
Equity Incentive Plan [Member]
Share-based compensation
Outstanding options and restricted stock units		3,202,000	3,076,000
Reserved but unissued shares under the Plans		2,777,000	2,901,000
Number of shares authorized		5,979,000	5,977,000
Increases in the number of authorized shares		150,423
Fair value of options granted (in dollars)		$ 98	$ 217
Weighted Average Value Per Share		$ 1.43	$ 3.37
2021 Plan
Share-based compensation
Maximum number of shares that may be issued as a proportion of outstanding stock	10.00%
Maximum increase in number of shares available for issuance	400,000
2011 Plan
Share-based compensation
Total amount of award carried forward to the new plan	$ 3,381

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- Definition

The number of shares of stock already awarded under the share-based compensation plan, including options and restricted stock units.

+ References

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Total amount of award carry forwarded to the new plan under share based payment awards.

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- Definition

Maximum increase in shares available for issuance under share based payment awards.

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- Definition

Fair value of options granted in period. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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