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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2023

Share-Based Payment Arrangement [Abstract]

Stock-based Compensation Expense Included in Operating Expense

Stock-based compensation expense was included in the following operating expense categories as follows (in thousands):

		Six Months Ended June 30,								Three Months Ended June 30,
		2022				2023				2022				2023
Service costs		$	79			$	-			$	45			$	(45	)
Sales and marketing			391				491				200				228
Product development			158				133				76				47
General and administrative			781				876				393				471
Total stock-based compensation		$	1,409			$	1,500			$	714			$	701

Assumptions to Estimate Fair Value for Stock Options at Grant Date

The following weighted average assumptions were used in determining the fair value of time-vested stock option grants for the periods presented:

		Six Months Ended June 30,				Three Months Ended June 30,
		2022		2023		2022				2023
Expected life (in years)		4.0 - 6.25		4.0 - 6.25		4.0				4.0 - 6.25
Risk-free interest rate		2.41%-3.35%		3.58%-4.31%			3.35	%		4.05%-4.31%
Expected volatility		51%-61%		53%-64%			61	%		53%-64%

Summary of Stock Option Activity

Stock option activity during the six months ended June 30, 2023 is summarized as follows:

		Shares (in thousands)				Weighted average exercise price				Weighted average remaining contractual term (in years)
Balance at December 31, 2022			3,766			$	3.14				6.67
Options granted			1,350				2.00
Options forfeited			(245	)			2.67
Options expired			(368	)			4.42
Balance at June 30, 2023			4,503			$	2.73				6.38

Summary of Restricted Stock Awards and Restricted Stock Units

Restricted stock awards and restricted stock unit activity during the six months ended June 30, 2023 is summarized as follows:

		Shares/ Units (in thousands)				Weighted average grant date fair value
Unvested balance at December 31, 2022			1,640			$	2.53
Granted			259				1.97
Vested			(412	)			2.44
Forfeited			(219	)			2.74
Unvested balance at June 30, 2023			1,268			$	2.42

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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