Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2014

Accrued Liabilities [Abstract]

Schedule Of Accrued Liabilities

	March 31,	December 31,
	2014	2013
Accrued salaries, bonus, and benefits	$     3,811,420	$    3,565,385
Accrued rent	1,490,004	1,499,942
Accrued warranties	449,718	501,212
Accrued interest	496,405	498,058
Accrued taxes	293,267	360,475
Other	1,263,592	654,309
Total accrued liabilities	$     7,804,406	$    7,079,381