Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) Segment shares	Dec. 31, 2014 USD ($) shares
Summary of Significant Accounting Policies [Abstract]
Term of warranty	1 year
Period of post customer support service (PCS)	1 year
Cash and Cash Equivalents [Abstract]
Money market accounts	$ 5,400,000	$ 7,500,000
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	1,771,000	613,000
Long-term restricted cash	$ 1,779,000	3,591,000
Maximum maturity period for highly liquid investments to be considered cash equivalents	3 months
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	$ 22,000	2,000
Current year provision	101,000	22,000
Allowance for Doubtful Accounts Receivable, Write-offs	(20,000)	(22,000)
Allowance for Doubtful Accounts Receivable, Business Combination, Acquired Receivables, Period Increase (Decrease)	0	20,000
Allowance for Doubtful Accounts Receivable, Period Increase (Decrease), Total	81,000	20,000
Ending balance	$ 103,000	22,000
Software Development Costs, net [Abstract]
Software Development Costs Useful Life	3 years
Write down of capitalized software development costs		0
Development Expenditures [Abstract]
Development Expenditures	$ 3,100,000	3,800,000
Goodwill and Intangible Assets [Abstract]
Number of Reporting Units | Segment	2
Foreign Currency Translation [Abstract]
Foreign currency transaction gains (losses)	$ (30,000)	(180,000)
Product Warranty [Roll Forward]
Beginning balance	1,456,000	1,851,000
Current year provision	626,000	660,000
Current year claims	(455,000)	(1,025,000)
Currency adjustment	(13,000)	(30,000)
Standard Product Warranty Accrual, Period Increase (Decrease), Total	158,000	(395,000)
Ending balance	1,614,000	1,456,000
Stock-Based Compensation [Abstract]
Share based compensation expense	541,000	712,000
Unrecognized compensation expense	1,100,000
Numerator: [Abstract]
Net income (loss) attributed to common stockholders	$ (4,705,000)	$ (7,329,000)
Denominator: [Abstract]
Weighted-average shares outstanding for basic earnings per share (in shares) | shares	17,892,891	17,887,859
Effect of Dilutive Securities: [Abstract]
Employee stock options and warrants (in shares) | shares	0	0
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares) | shares	17,892,891	17,887,859
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares) | shares	2,492,710	2,811,709
In the money options and warrants (in shares) | shares	0
Interest-bearing Deposits [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash and Cash Equivalent Item, Description	Restricted cash consists of the cash collateralization of outstanding letters of credit used for various advance payment, bid, surety and performance bonds, and negative foreign exchange positions which have been segregated into restricted money market accounts with BB&T Bank.
Restricted cash	$ 1,771,000	$ 613,000
Long-term restricted cash	1,779,000	3,591,000
Interest Income, Other Domestic Deposits	$ 10,000	$ 7,000
Equipment, Software and Leasehold Improvements, net [Member] | Maximum [Member]
Equipment, software and leasehold improvements, net [Abstract]
Estimated useful life	10 years
Equipment, Software and Leasehold Improvements, net [Member] | Minimum [Member]
Equipment, software and leasehold improvements, net [Abstract]
Estimated useful life	3 years