INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

Deferred tax assets (liabilities) included in the balance sheet as of December 31, 2016 and 2015 are as follows (in thousands):

	2016			2015
Deferred tax assets:
Net operating loss carryforward	$	155		$	523
Allowance for doubtful accounts	519			671
Provision for accrued expenses and other, net	2,947			2,412
Stock based compensation	5,410			4,825
Deferred revenue	283			173
Tax credit carryforward	3,257			1,443
	12,571			10,047
Less valuation allowance	1,033			1,746
Deferred tax asset, net of valuation allowance	11,538			8,301
Deferred tax liabilities:
Acquired intangibles	(14,602		)	(15,264		)
Depreciation of fixed assets	(4,531		)	(3,564		)
Deferred tax liabilities	(19,133		)	(18,828		)
Net deferred tax liability	$	(7,595	)	$	(10,527	)
Recognized in Consolidated Balance Sheets:
Deferred tax asset	306			322
Deferred tax liability	(7,901		)	(10,849		)
Net deferred tax liability	$	(7,595	)	$	(10,527	)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

Tax expense (benefit) for the years ended December 31, 2016, 2015 and 2014 is as follows (in thousands):

	2016			2015			2014
Current income tax expense:
Federal	$	5,048		$	10,201		$	13,184
State	931			1,491			1,948
Foreign	2,259			3,500			3,753
Current income tax expense	8,238			15,192			18,885
Deferred income tax expense (benefit):
Federal	(891		)	998			(1,048		)
State	192			405			(448		)
Foreign	(2,260		)	(2,586		)	(2,152		)
Deferred income tax benefit	(2,959		)	(1,183		)	(3,648		)
Income tax expense	$	5,279		$	14,009		$	15,237

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

A reconciliation between the tax expense at the federal statutory rate and the reported income tax expense is summarized as follows:

	Year Ended December 31,
	2016			2015			2014
Federal statutory rate	$	(42	)	$	1,064		$	14,997
Permanent items excluding nondeductible impairment	(210		)	18			326
Nondeductible impairment	5,287			9,199			—
State taxes, net of federal effect	756			1,435			1,043
Difference between foreign and U.S. rates	297			2,366			(738		)
Change in unrecognized tax benefits	(923		)	46			774
Recognition of tax loss carryforwards	—			—			(1,832		)
Gross tax on foreign dividend	5,084			—			—
Tax credits related to foreign dividend	(4,244		)	—			—
Change in valuation allowances	(713		)	—			—
Other	(13		)	(119		)	667
Income tax expense	$	5,279		$	14,009		$	15,237
Effective tax rate	(4,436.1		)%	460.7		%	35.6		%

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]

Following is a reconciliation of the amounts of unrecognized tax benefits for the years ended December 31, 2016, 2015 and 2014 (in thousands):

	2016			2015			2014
Unrecognized tax benefits—beginning of period	$	2,989		$	3,122		$	2,359
Increases in tax positions related to current year	117			169			608
Increases in tax positions related to prior year	—			76			201
Decreases in tax positions related to prior year	(43		)	—			—
Lapse of statute of limitations	(910		)	(378		)	(46		)
Unrecognized tax benefits—end of period	$	2,153		$	2,989		$	3,122