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Capital Stock (Tables)

12 Months Ended

Dec. 31, 2018

Capital Stock Disclosure [Abstract]

Schedule Of Stock Options And Restricted Stock Units Activity Rollforward [Table Text Block]

			Stock Options					Restricted Stock Units					Market Condition RSU's
						Weighted
			Stock			Average		Restricted					Market
			Options			Exercise		Stock Units			Grant Date		Condition RSU's			Grant Date
			Outstanding			Price		Outstanding			Fair Value		Outstanding			Fair Value
Balance at December 31, 2016			4,096,818			3.94		1,072,653			3.15		182,150			4.81
	Granted		237,700			3.24		1,298,371			2.49		-			-
	Exercised		(143,391)			2.48		-			-		-			-
	Vested (RSUs)		-			-		(488,570)			3.08		-			-
	Cancelled / forfeited		(410,883)			3.93		(85,527)			3.05		(18,023)			4.81
Balance at December 31, 2017			3,780,244		$	3.95		1,796,927		$	2.69		164,127		$	4.81
	Granted		104,585			4.48		639,126			4.31		156,944			4.19
	Exercised		(1,696,255)			3.50		-			-		-			-
	Vested (RSUs)		-			-		(845,326)			2.88		(69,667)			4.81
	Cancelled / forfeited		(231,842)			4.96		(356,965)			2.84		(134,460)			4.63
Balance at December 31, 2018			1,956,732		$	4.25		1,233,762		$	3.36		116,944		$	4.19

Stock Based Compensation Expense Activity By Function [Table Text Block]

		Year Ended
		December 31,
		2018			2017
	(in thousands)
Cost of revenues	$	64		$	61
Sales and marketing		431			488
General and administrative		2,232			2,695
Research and development		167			139
Discontinued operations		150			117
Total stock-based compensation	$	3,044		$	3,500

Basic and Diluted Shares [Table Text Block]

		Year Ended
		December 31,
		2018		2017
Basic		36,453,126		34,753,325
Effect of assumed conversion of employee and director stock options, restricted stock units and Market Condition RSUs		-		-
Diluted		36,453,126		34,753,325

Schedule of Summary of Outstanding and Exercisable Options [Table Text Block]

			Options Outstanding								Options Exercisable
					Weighted								Weighted
					Average		Weighted						Average		Weighted
	Range of		Shares		Remaining		Average		Aggregate		Shares		Remaining		Average		Aggregate
	Exercise		Outstanding at		Contractual Life		Exercise		Intrinsic		Exercisable at		Contractual Life		Exercise		Intrinsic
	Price		Dec. 31, 2018		in Years		Price		Value		Dec. 31, 2018		in Years		Price		Value
$	2.28-3.29		204,476		4.74	$	2.71	$	96		160,851		3.89	$	2.66	$	84
	3.30-3.49		175,200		8.83		3.33		-		58,400		8.83		3.33		-
	3.50-3.92		159,037		5.95		3.68		-		114,452		4.41		3.64		-
	3.93-4.08		79,019		2.42		4.04		-		79,019		2.42		4.04		-
	4.09-4.17		402,325		5.41		4.12		-		402,325		5.41		4.12		-
	4.18-4.26		49,000		5.75		4.21		-		49,000		5.75		4.21		-
	4.27-4.38		350,000		4.88		4.31		-		350,000		4.88		4.31		-
	4.39-5.39		146,550		6.65		4.95		-		121,550		6.09		5.05		-
	5.40-5.54		203,625		6.18		5.51		-		144,375		6.18		5.51		-
	5.55-5.75		187,500		6.77		5.58		-		125,625		6.43		5.56		-
$	2.28-5.75		1,956,732		5.79	$	4.25	$	96		1,605,597		5.26	$	4.26	$	84

Black-Scholes option pricing model [Member]

Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]

Table Of Assumptions [Table Text Block]

		Year Ended
		December 31,
		2018			2017
Volatility		43.28	%		41.63	%
Risk-free interest rate		2.84	%		2.03	%
Expected holding period (in years)		4.83	years		5.41	years
Dividend yield		-	%		-	%

Monte-Carlo valuation simulation [Member]

Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]

Table Of Assumptions [Table Text Block]

	Year Ended
	December 31,
	2018
Volatility	44.02	%
Risk-free interest rate	2.27	%
Correlation coefficient	0.07	%
Dividend yield	-	%

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