CONVERTIBLE NOTES (Narrative) (Details) - USD ($)	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Repayments of Convertible Debt		$ 6,726,000
2013 Notes [Member]
Long-term Debt, Gross	$ 5,900,000
Debt Instrument, Term	5 years
2016 Notes [Member]
Debt Conversion, Converted Instrument, Shares Issued	1,338,707
Repayments of Convertible Debt	$ 11,668
Long-term Debt, Gross	58,100,000
Debt Conversion, Original Debt, Amount	$ 1,000,000

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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