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Business and Significant Accounting Policies (Details Narrative) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Aug. 20, 2015
Accounting Policies [Abstract]
Working capital deficit	$ 3,200XPL_WorkingCapital
RMB loan due			$ 5,000us-gaap_ShortTermBorrowings
Potentially dilutive shares related to outstanding common stock options	3,748,000us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2,022,000us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
RMB warrants excluded from calculation of diluted loss per share	1,624,748us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants	1,624,748us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Warrant

-URI http://asc.fasb.org/extlink&oid=6528364



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257



Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 260

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-Section 45

-Paragraph 23

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1757-109256



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Treasury Stock Method

-URI http://asc.fasb.org/extlink&oid=6527216



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Call Option

-URI http://asc.fasb.org/extlink&oid=6506649

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257



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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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