4. Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

Schedule of accounts receivable

	Year Ended December 31,
	2016			2015
Accounts receivable - laboratory services	$	13,220,498		$	105,332,339
Accounts receivable - all others		701,583			569,351
Total accounts receivable		13,922,081			105,901,690
Less:
Allowance for discounts		(12,103,547	)		(97,577,130	)
Allowance for bad debts		(350,954	)		(175,076	)
Accounts receivable, net	$	1,467,580		$	8,149,484