Accrued Liabilities (Schedule Of Accrued Liabilities) (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Accrued Liabilities [Abstract]
Accrued salaries, bonus, and benefits	$ 2,867,006	$ 3,053,012
Accrued rent	1,199,018	1,361,379
Accrued licenses and maintenance fees	586,304	666,373
Accrued interest		494,703
Accrued warranties	247,648	316,835	$ 364,548
Accrued taxes	318,950	324,226
Accrued professional services	183,948	27,140
Other	208,930	90,325
Total accrued liabilities	5,611,804	6,333,993
Less: Long term accrued liabilities	(388,213)	(275,603)
Total current accrued liabilities	$ 5,223,591	$ 6,058,390