2. Basis of Presentation and Summary of Significant Accounting Policies (Details 1)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Company's customers that individually comprised greater than 10% of total gross product sales
Percentage of gross product sales	83.00%	88.00%	84.00%	83.00%
Percentage of accounts receivable	82.00%		82.00%		77.00%
Cardinal Health Inc
Company's customers that individually comprised greater than 10% of total gross product sales
Percentage of gross product sales	22.00%	41.00%	27.00%	36.00%
Percentage of accounts receivable	14.00%		14.00%		43.00%
McKesson Corporation
Company's customers that individually comprised greater than 10% of total gross product sales
Percentage of gross product sales	30.00%	29.00%	34.00%	29.00%
Percentage of accounts receivable	29.00%		29.00%		17.00%
Amerisource Bergen Drug Corporation
Company's customers that individually comprised greater than 10% of total gross product sales
Percentage of gross product sales	26.00%	7.00%	17.00%	11.00%
Percentage of accounts receivable	36.00%		36.00%		6.00%
Walgreens Corporation
Company's customers that individually comprised greater than 10% of total gross product sales
Percentage of gross product sales	5.00%	11.00%	6.00%	7.00%
Percentage of accounts receivable	3.00%		3.00%		11.00%