Summary of Significant Accounting Policies (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Summary of Significant Accounting Policies [Line Items]
Amortization of Intangible Assets	$ 254	$ 233
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	254
Finite-Lived Intangible Assets, Amortization Expense, Year Two	178
Finite-Lived Intangible Assets, Amortization Expense, Year Three	171
Finite-Lived Intangible Assets, Amortization Expense, Year Four	171
Finite-Lived Intangible Assets, Amortization Expense, Year Five	171
Multiemployer Plans, Collective-Bargaining Arrangement, Percentage of Employer's Participants	28.00%
Royalty Expense	82	125
Stock or Unit Option Plan Expense	272	258
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	6 years 6 months	6 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate	75.00%	77.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.32%	1.18%
Incremental Common Shares Attributable to Call Options and Warrants	1,118	1,032
Finite-Lived Intangible Assets, Amortization Method	2 years
Amortization	861	933
Customer Relationships [Member]
Summary of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Assets, Amortization Method	10 years
Proprietary Technology [Member]
Summary of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Assets, Amortization Method	10 years
Noncompete Agreements [Member]
Summary of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Assets, Amortization Method	3 years
Analog Video Headend Products [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration Risk, Product	21%	22%
Digital Video Headend Products [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration Risk, Product	46%	47%
Minimum [Member] | Customer Relationships [Member]
Summary of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Maximum [Member] | Customer Relationships [Member]
Summary of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Office Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3 years
Office Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	5 years
Furniture and Fixtures [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	7 years
Machinery and Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	6 years
Machinery and Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10 years
Building Improvements [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10 years
Building Improvements [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	15 years
Manufacturing Facility [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	40 years
License [Member]
Summary of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	550
Finite-Lived Intangible Assets, Amortization Expense, Year Two	292
Amortization	$ 607	$ 700