Capital Stock (Tables)

9 Months Ended

Sep. 30, 2014

Capital Stock Disclosure [Abstract]

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

		Stock Options			Restricted Stock Units
				Weighted
		Stock		Average	Restricted
		Options		Exercise	Stock Units		Grant Date
		Outstanding		Price	Outstanding		Fair Value
Balance at December 31, 2013		6,690,845	$	3.42	463,973	$	4.32
	Granted	993,000		4.14	116,400		4.12
	Exercised	(535,413)		3.00	-		-
	Vested (RSUs)	-		-	(233,098)		-
	Cancelled / forfeited	(832,263)		4.69	(40,878)		4.36
Balance at September 30, 2014		6,316,169	$	3.40	306,397	$	4.30

Table Of Assumptions [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2013		2014		2013
Volatility	56.96	%	-	%	56.83	%	57.20	%
Risk-free interest rate	1.90	%	-	%	1.79	%	1.18	%
Expected holding period (in years)	5.93		-		5.75		5.64
Dividend Yield	-	%	-	%	-	%	-	%

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

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
		(in thousands)
Cost of product revenues	$	36	$	39	$	94	$	91
Sales and marketing		100		47		244		130
General and administrative		463		632		1,160		1,685
Research and development		16		16		36		33
Discontinued operations		-		29		-		61
Total stock-based compensation	$	615	$	763	$	1,534	$	2,000

Basic and Diluted Shares [Table Text Block]

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2014	2013	2014	2013
Basic	32,341,586	30,574,815	32,079,744	30,154,788
Effect of assumed conversion of employee and director stock options and restricted stock units	1,073,271	-	1,017,268	1,607,678
Diluted	33,414,857	30,574,815	33,097,012	31,762,466