Income Taxes (Details) (USD $)	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefits	$ 3,446,000								$ 3,011,000								$ 3,446,000	$ 3,011,000	$ 2,878,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	3,000,000																3,000,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense																	22,000
Uncertain Tax Benefits, Potential Change, Current																	400,000
Deferred Tax Assets, Valuation Allowance	82,995,000								50,200,000								82,995,000	50,200,000
Deferred Tax Assets, Tax Credit Carryforwards, Research	17,600,000																17,600,000
Investment Tax Credit																	5,500,000
Repatriation of Cash from Foreign Subsidiaries																	800,000
Deferred Tax Liabilities, Undistributed Foreign Earnings	800,000																800,000
Undistributed Earnings of Foreign Subsidiaries	2,200,000																2,200,000
Indefinite Reinvestment of Undistributed Earnings from Foreign Subsidiaries																	13,200,000
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(13,947,000)	[1]	(11,996,000)	[1]	(3,273,000)	[1]	(5,550,000)	[1]	(3,590,000)	[1]	(34,324,000)	[1]	2,422,000	[1]	(4,254,000)	[1]	(34,449,000)	(40,884,000)	(12,661,000)	[2]
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	144,800,000								84,000,000								144,800,000	84,000,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,600,000																3,600,000
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Year																	2033
CANADA
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Valuation Allowance	12,500,000																12,500,000
Deferred Tax Assets, Tax Credit Carryforwards, Research	15,300,000																15,300,000
Domestic [Member]
Operating Loss Carryforwards [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest																	46,500,000	55,800,000	23,200,000
Foreign Countries [Member]
Operating Loss Carryforwards [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest																	12,000,000	14,900,000	10,500,000
Interest Expense [Member]
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	400,000																400,000
Penalty [Domain]
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 300,000																$ 300,000

[1] The comparability of our income (loss) from operations and net income (loss) per share was affected by the following unusual income or expense items:•During the fourth quarter of 2013, the Company incurred a $12.5 million loss associated with the establishment of a valuation allowance against certain of the Company's foreign deferred tax assets.•During the first quarter of 2013, the Company recorded a $2.9 million loss associated to the write off of the Company's Security Gateway ("SEG") purchased computer software due to management's decision to abandon future development of this technology.•During the first quarter of 2013, the Company recorded a $1.5 million gain associated with the the sale of the Company's OS-9 software assets.•The balance of goodwill was determined to be impaired during the third quarter of 2012, resulting in an impairment charge of $29.7 million. In addition, the Company recorded a $5.9 million gain associated with a decrease in fair value of the contingent consideration related to our acquisition of Continuous Computing.

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