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NET SALES SERVICE REVENUE AND ACCOUNTS RECEIVABLE (Schedule of Receivables) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts Receivable, Gross	$ 1,857	$ 1,198
Less allowance for doubtful accounts	(1,127)	(810)
Accounts receivable, net	730	388
Medicaid [Member]
Accounts Receivable, Gross	37	22
Medicare [Member]
Accounts Receivable, Gross	256	232
Self-Pay [Member]
Accounts Receivable, Gross	53	63
Third party payers [Member]
Accounts Receivable, Gross	1,066	$ 881
Contract diagnostic services [Member]
Accounts Receivable, Gross	$ 445

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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.

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