Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

Summary of Reconciliation of Changes in Stockholders' Equity

Reconciliation of the changes in stockholders' equity for the three and nine months ended September 30, 2019 and 2018
	Common Stock					Additional Paid-in			Accumulated Other Comprehensive			Accumulated
	Shares			Amount		Capital			Loss			Deficit			Total
Balance at December 31, 2018		61,276		$	—	$	401,273		$	(18,706	)	$	(99,189	)	$	283,378
Common stock issued upon exercise of options		4			—		22			—			—			22
Vesting of restricted stock and performance stock units		664			—		—			—			—			—
Purchase and retirement of common shares		(277	)		—		(3,595	)		—			—			(3,595	)
Compensation cost for restricted stock		—			—		653			—			—			653
Compensation cost for stock option grants		—			—		324			—			—			324
Compensation cost for performance stock units		—			—		254			—			—			254
Net loss		—			—		—			—			(3,258	)		(3,258	)
Currency translation adjustments										2,232						2,232
Unrealized gain on marketable securities		—			—		—			497			—			497
Balance at March 31, 2019		61,667		$	—	$	398,931		$	(15,977	)	$	(102,447	)	$	280,507
Common stock issued upon exercise of options		18			—		147			—			—			147
Vesting of restricted stock and performance stock units		51			—		—			—			—			—
Purchase and retirement of common shares		(11	)		—		(109	)		—			—			(109	)
Compensation cost for restricted stock		—			—		874			—			—			874
Compensation cost for stock option grants		—			—		311			—			—			311
Compensation cost for performance stock units		—			—		(569	)		—			—			(569	)
Net income		—			—		—			—			4,398			4,398
Currency translation adjustments										2,476						2,476
Unrealized gain on marketable securities		—			—		—			186			—			186
Balance at June 30, 2019		61,725		$	—	$	399,585		$	(13,315	)	$	(98,049	)	$	288,221
Common stock issued upon exercise of options		-			—		—			—			—			-
Vesting of restricted stock and performance stock units		2			—		—			—			—			—
Purchase and retirement of common shares		(1	)		—		(7	)		—			—			(7	)
Compensation cost for restricted stock		-			—		858			—			—			858
Compensation cost for stock option grants		-			—		259			—			—			259
Compensation cost for performance stock units		-			—		319			—			—			319
Net income		-			—		—			—			13,078			13,078
Currency translation adjustments										(1,557	)					(1,557	)
Unrealized gain on marketable securities		-			—		—			194			—			194
Balance at September 30, 2019		61,726		$	—	$	401,014		$	(14,678	)	$	(84,971	)	$	301,365


	Common Stock					Additional Paid-in			Accumulated Other Comprehensive			Accumulated
	Shares			Amount		Capital			Loss			Deficit			Total
Balance at December 31, 2017		60,662		$	—	$	387,931		$	(10,340	)	$	(119,510	)	$	258,081
Adoption of ASU 2014-9													(75	)		(75	)
Common stock issued upon exercise of options		133			—		974			—			—			974
Vesting of restricted stock and performance stock units		407			—		—			—			—			—
Purchase and retirement of common shares		(149	)		—		(2,959	)		—			—			(2,959	)
Compensation cost for restricted stock		—			—		3,626			—			—			3,626
Compensation cost for stock option grants		—			—		900			—			—			900
Compensation cost for performance stock units		—			—		2,957			—			—			2,957
Net loss		—			—		—			—			(2,119	)		(2,119	)
Currency translation adjustments										(2,154	)					(2,154	)
Unrealized loss on marketable securities		—			—		—			(512	)		—			(512	)
Balance at March 31, 2018		61,053		$	—	$	393,429		$	(13,006	)	$	(121,704	)	$	258,719
Common stock issued upon exercise of options		29			—		222			—			—			222
Vesting of restricted stock and performance stock units		106			—		—			—			—			—
Purchase and retirement of common shares		(14	)		—		(212	)		—			—			(212	)
Compensation cost for restricted stock		—			—		1,419			—			—			1,419
Compensation cost for stock option grants		—			—		475			—			—			475
Compensation cost for performance stock units		—			—		1,885			—			—			1,885
Net income		—			—		—			—			4,121			4,121
Currency translation adjustments										(1,652	)					(1,652	)
Unrealized gain on marketable securities		—			—		—			194			—			194
Balance at June 30, 2018		61,174		$	—	$	397,218		$	(14,464	)	$	(117,583	)	$	265,171
Common stock issued upon exercise of options		62			—		483			—			—			483
Vesting of restricted stock and performance stock units		2			—		—			—			—			—
Purchase and retirement of common shares		(1	)		—		(9	)		—			—			(9	)
Compensation cost for restricted stock		—			—		589			—			—			589
Compensation cost for stock option grants		—			—		359			—			—			359
Compensation cost for performance stock units		—			—		316			—			—			316
Net income		—			—		—			—			8,096			8,096
Currency translation adjustments										1,783						1,783
Unrealized loss on marketable securities		—			—		—			(34	)		—			(34	)
Balance at September 30, 2018		61,237		$	—	$	398,956		$	(12,715	)	$	(109,487	)	$	276,754