Interim Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Outstanding [Member]		Additional Paid-in Capital [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2017	22,064,007
Balance at Dec. 31, 2017	$ 22		$ 217,417	$ (26,056)	$ (586)	$ 53,873	$ 244,670
Net loss						(4,272)	(4,272)
Other comprehensive income (loss)					(831)		(831)
Equity-based compensation			5,616				$ 5,616
Purchase of treasury stock (in shares)	311,056						(311,056)
Purchase of treasury stock				(10,434)			$ (10,434)
Issuance of treasury stock upon exercise of stock-based awards (in shares)	277,647
Issuance of treasury stock upon exercise of stock-based awards		[1]	(3,700)	4,850		(88)	$ 1,062
Purchase of treasury stock (in shares)	(311,056)						311,056
Cumulative effect of adoption of new accounting standard						8,555	$ 8,555
Balance (in shares) at Jun. 30, 2018	22,030,598
Balance at Jun. 30, 2018	$ 22		219,333	(31,640)	(1,417)	58,068	244,366
Balance (in shares) at Mar. 31, 2018	22,220,608
Balance at Mar. 31, 2018	$ 22		217,923	(24,146)	(1,188)	60,204	252,815
Net loss						(2,090)	(2,090)
Other comprehensive income (loss)					(229)		(229)
Equity-based compensation			2,845				$ 2,845
Purchase of treasury stock (in shares)	269,734						(269,734)
Purchase of treasury stock				(8,975)			$ (8,975)
Issuance of treasury stock upon exercise of stock-based awards (in shares)	79,724
Issuance of treasury stock upon exercise of stock-based awards		[1]	(1,435)	1,481		(46)
Purchase of treasury stock (in shares)	(269,734)						269,734
Balance (in shares) at Jun. 30, 2018	22,030,598
Balance at Jun. 30, 2018	$ 22		219,333	(31,640)	(1,417)	58,068	$ 244,366
Balance (in shares) at Dec. 31, 2018	21,787,860
Balance at Dec. 31, 2018	$ 22		223,250	(39,132)	(1,114)	62,853	245,879
Net loss						(3,809)	(3,809)
Other comprehensive income (loss)					1,178		1,178
Equity-based compensation			5,095				$ 5,095
Purchase of treasury stock (in shares)	(194,316)						(194,316)
Purchase of treasury stock				(4,861)			$ (4,861)
Issuance of treasury stock upon exercise of stock-based awards (in shares)	299,584
Issuance of treasury stock upon exercise of stock-based awards		[1]	(5,039)	6,495		(293)	$ 1,163
Purchase of treasury stock (in shares)	194,316						194,316
Balance (in shares) at Jun. 30, 2019	21,893,128
Balance at Jun. 30, 2019	$ 22		223,306	(37,498)	64	58,751	$ 244,645
Balance (in shares) at Mar. 31, 2019	21,972,816
Balance at Mar. 31, 2019	$ 22		221,071	(35,686)	(427)	60,332	245,312
Net loss						(1,512)	(1,512)
Other comprehensive income (loss)					491		491
Equity-based compensation			2,679				$ 2,679
Purchase of treasury stock (in shares)	(103,013)						(103,013)
Purchase of treasury stock				(2,325)			$ (2,325)
Issuance of treasury stock upon exercise of stock-based awards (in shares)	23,325
Issuance of treasury stock upon exercise of stock-based awards		[1]	(444)	513		(69)
Purchase of treasury stock (in shares)	103,013						103,013
Balance (in shares) at Jun. 30, 2019	21,893,128
Balance at Jun. 30, 2019	$ 22		$ 223,306	$ (37,498)	$ 64	$ 58,751	$ 244,645

[1] Amount less than $1.