4. Accounts Receivable (Details) - USD ($) |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Accounts receivable, gross | $ 13,922,081 | $ 105,901,690 |
| Less: Allowance for discounts | (12,103,547) | (97,577,130) |
| Less: Allowance for bad debts | (350,954) | (175,076) |
| Accounts receivable, net | 1,467,580 | 8,149,484 |
| Laboratory Services [Member] | ||
| Accounts receivable, gross | 13,220,498 | 105,332,339 |
| All Others [Member] | ||
| Accounts receivable, gross | $ 701,583 | $ 569,351 |
| X | ||||||||||
- Definition Allowance for discounts No definition available.
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| X | ||||||||||
- Definition For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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