Summary of Significant Accounting Policies - EPS & Revenue Recognition (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Long-Lived Assets
Impairment of long-lived assets	$ 0	$ 0
Valuation Assumptions
Weighted average grant date fair value (in dollars per share)	$ 1.94	$ 1.80
Weighted average assumptions used:
Expected dividend yield (as a percent)	0.00%	0.00%
Risk-free interest rate (as a percent)	1.51%	1.46%
Expected volatility (as a percent)	229.24%	227.57%
Expected life (in years)	5 years	4 years 10 months 28 days
Net Loss Per Share
Number of common stock equivalents excluded from the diluted loss per share calculation (in shares)	3,765,959	3,132,330
Revenue Recognition
Number of days available to the customer to return the product from the date of delivery	30 days
Term of the contract period over which maintenance and support revenue is deferred and recognized	1 year
Period of payment terms offered to customers, distributors and resellers domestically	30 days
Period of payment terms offered to customers, distributors and resellers internationally	45 days
Maximum period for which payment terms can be offered	1 year
Income Taxes
Unrecognized tax benefits	$ 0	$ 0