Restricted Stock (Allocations and Narrative) (Details) (USD $) In Thousands, unless otherwise specified		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Dec. 31, 2013	Sep. 30, 2014 Restricted Stock [Member]	Sep. 30, 2013 Restricted Stock [Member]	Sep. 30, 2014 Restricted Stock [Member]	Sep. 30, 2013 Restricted Stock [Member]	Sep. 30, 2014 Cost of revenue [Member] Restricted Stock [Member]	Sep. 30, 2013 Cost of revenue [Member] Restricted Stock [Member]	Sep. 30, 2014 Cost of revenue [Member] Restricted Stock [Member]	Sep. 30, 2013 Cost of revenue [Member] Restricted Stock [Member]	Sep. 30, 2014 Research and development [Member] Restricted Stock [Member]	Sep. 30, 2013 Research and development [Member] Restricted Stock [Member]	Sep. 30, 2014 Research and development [Member] Restricted Stock [Member]	Sep. 30, 2013 Research and development [Member] Restricted Stock [Member]	Sep. 30, 2014 Sales and marketing [Member] Restricted Stock [Member]	Sep. 30, 2013 Sales and marketing [Member] Restricted Stock [Member]	Sep. 30, 2014 Sales and marketing [Member] Restricted Stock [Member]	Sep. 30, 2013 Sales and marketing [Member] Restricted Stock [Member]	Sep. 30, 2014 General and administrative [Member] Restricted Stock [Member]	Sep. 30, 2013 General and administrative [Member] Restricted Stock [Member]	Sep. 30, 2014 General and administrative [Member] Restricted Stock [Member]	Sep. 30, 2013 General and administrative [Member] Restricted Stock [Member]	Sep. 30, 2014 Shares Withheld and Repurchased [Member] Restricted Stock [Member]	Sep. 30, 2014 Additional Paid-in Capital [Member] Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested, restricted shares				122																		40
Minimum statutory tax withholding requirements																						$ 66
Restricted stock compensation expense		53	25	192	358	7	3	30	11	3	0	9	3	10	12	19	38	33	10	134	306
Issuance of restricted stock to settle accrued 2013 bonuses, Value																							204
Accrued bonuses	165
Unrecognized stock-based compensation expense for restricted stock		765		765
Unrecognized stock-based compensation expense, restricted stock, upon change in control, value		38		38
Unrecognized stock-based compensation expense, restricted stock, upon change in control, shares		15		15
Unrecognized stock-based compensation expense, restricted stock, amortized for weighted average period		$ 727		$ 727
Weighted average period for amortization of unrecognized stock-based compensation, restricted stock				2 years 10 months 24 days