Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2013

Accrued Liabilities [Abstract]

Schedule Of Accrued Liabilities

	September 30,	December 31,
	2013	2012
Accrued salaries, bonus, and benefits	$     2,715,907	$    2,123,167
Accrued rent	1,494,539	1,095,641
Accrued warranties	546,079	653,473
Accrued interest	496,197	469,049
Accrued licenses and maintenance fees	340,696	323,901
Other	1,246,379	696,579
Total accrued liabilities	$     6,839,797	$    5,361,810