Stockholders' Equity - Summary of Company's Restricted Share Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2023	Dec. 31, 2022
Options Outstanding
Beginning balance (in shares)	131
Granted (in shares)	0
Exercised (in shares)	0
Canceled/forfeited (in shares)	0
Expired (in shares)	(4)
Ending balance (in shares)	127	131
Exercisable (in shares)	127
Weighted- Average Exercise Price
Weighted average exercise price, beginning balance (in dollars per share)	$ 4.08
Weighted average exercise price, granted (in dollars per share)	0
Weighted average exercise price, exercised (in dollars per share)	0
Weighted average exercise price, canceled/forfeited (in dollars per share)	0
Weighted average exercise price, expired (in dollars per share)	8.26
Weighted average exercise price, ending balance (in dollars per share)	3.93	$ 4.08
Weighted average exercise price, exercisable (in dollars per share)	$ 3.93
Weighted-average remaining contractual term, outstanding	3 years 9 months 18 days	4 years 4 months 24 days
Weighted-average remaining contractual term, exercisable	3 years 9 months 18 days
Aggregate intrinsic value outstanding	$ 226	$ 172
Aggregate intrinsic value exercisable	$ 226

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Balance Type:	na
Period Type:	instant

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.