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Net Loss Per Share - Summary of Computation of Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (1,619)	$ (2,609)	$ (4,140)	$ (2,372)
Basic weighted average common shares outstanding	10,219	10,026	10,188	9,948
Plus dilutive effect of potential common shares	0	0	0	0
Diluted weighted average common shares outstanding	10,219	10,026	10,188	9,948
Basic	$ (0.16)	$ (0.26)	$ (0.41)	$ (0.24)
Diluted	$ (0.16)	$ (0.26)	$ (0.41)	$ (0.24)

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-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1505-109256

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1448-109256

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration