Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2014

Accrued Liabilities [Abstract]

Accrued Liabilities

The components of accrued liabilities are:

	March 31, 2014		December 31, 2013
Royalties	$	325,407	$	235,772
Interest		309,828		248,763
10% convertible preferred stock dividends		159,797		183,346
Rent		145,073		78,797
Payroll		121,820		119,937
Miscellaneous		53,744		30,125
Total accrued liabilities	$	1,115,669	$	896,740