INCOME TAXES (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Line Items]
Expected federal income tax benefit	$ (4,983,700)atos_ExpectedFederalTaxExpenseBenefit	$ (3,774,648)atos_ExpectedFederalTaxExpenseBenefit
Share-based compensation	36,100	0
Other permanent items	9,000	4,363
Effect of change in valuation allowance	4,938,600	3,770,285
Actual federal income tax benefit	$ 0us-gaap_CurrentFederalTaxExpenseBenefit	$ 0us-gaap_CurrentFederalTaxExpenseBenefit

Amount of expected federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 6.I.7)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Tax Expense (or Benefit)

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Article 4

Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section I

-Paragraph Question 1-7

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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