Income Taxes	6 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The income tax provision for the three months ended September 30, 2016 was determined by applying an estimated annual effective tax rate of (1.0)% to loss before taxes. The estimated effective tax rate for the three month period ended September 30, 2015 was (0.1)%. The estimated effective income tax rate was determined by applying statutory tax rates to pretax loss adjusted for certain permanent book to tax differences and tax credits. The income tax provision for the six months ended September 30, 2016 was determined by applying an estimated annual effective tax rate of (0.5)% to loss before taxes. Orion had discrete tax items in the first quarter of fiscal 2017 that increased the rate by 6.8% which resulted in a net rate for the quarter of 6.3%. The discrete tax items related to federal tax refunds and the release of a valuation reserve. The estimated effective tax rate for the six month period ended September 30, 2015 was (0.1)%. Orion is eligible for tax benefits associated with the excess of the tax deduction available for exercises of non-qualified stock options (NQSOs) over the amount recorded at grant. The amount of the benefit is based upon the ultimate deduction reflected in the applicable income tax return. As of September 30, 2016, Orion has federal net operating loss carryforwards of approximately $58,747,000, of which $3,247,000 are associated with the exercise of NQSOs that have not yet been recognized by Orion in its financial statements. Orion also has state net operating loss carryforwards of approximately $46,330,000, of which $3,727,000 are associated with the exercise of NQSOs. Orion also has federal tax credit carryforwards of approximately $1,403,000 and state tax credits of $724,000. Orion's net operating loss and tax credit carryforwards will begin to expire in varying amounts between 2020 and 2036. As of September 30, 2016, Orion has recorded a valuation allowance of $26,960,000 equaling the net deferred tax asset due to the uncertainty of its realization value in the future. Orion considers future taxable income and ongoing prudent and feasible tax planning strategies in assessing the need for the valuation allowance. In the event that Orion determines that the deferred tax assets are able to be realized, an adjustment to the deferred tax asset would increase income in the period such determination is made. Uncertain Tax Positions As of September 30, 2016, the balance of gross unrecognized tax benefits was approximately $113,000, all of which would reduce Orion’s effective tax rate if recognized. Orion has classified the amounts recorded for uncertain tax benefits in the balance sheet as other liabilities (non-current) to the extent that payment is not anticipated within one year. Orion recognizes penalties and interest related to uncertain tax liabilities in income tax expense. Penalties and interest are immaterial and are included in the unrecognized tax benefits.

INCOME TAXES

The income tax provision for the three months ended September 30, 2016 was determined by applying an estimated annual effective tax rate of (1.0)% to loss before taxes. The estimated effective tax rate for the three month period ended September 30, 2015 was (0.1)%. The estimated effective income tax rate was determined by applying statutory tax rates to pretax loss adjusted for certain permanent book to tax differences and tax credits.

The income tax provision for the six months ended September 30, 2016 was determined by applying an estimated annual effective tax rate of (0.5)% to loss before taxes. Orion had discrete tax items in the first quarter of fiscal 2017 that increased the rate by 6.8% which resulted in a net rate for the quarter of 6.3%. The discrete tax items related to federal tax refunds and the release of a valuation reserve. The estimated effective tax rate for the six month period ended September 30, 2015 was (0.1)%.

Orion is eligible for tax benefits associated with the excess of the tax deduction available for exercises of non-qualified stock options (NQSOs) over the amount recorded at grant. The amount of the benefit is based upon the ultimate deduction reflected in the applicable income tax return.

As of September 30, 2016, Orion has federal net operating loss carryforwards of approximately $58,747,000, of which $3,247,000 are associated with the exercise of NQSOs that have not yet been recognized by Orion in its financial statements. Orion also has state net operating loss carryforwards of approximately $46,330,000, of which $3,727,000 are associated with the exercise of NQSOs. Orion also has federal tax credit carryforwards of approximately $1,403,000 and state tax credits of $724,000. Orion's net operating loss and tax credit carryforwards will begin to expire in varying amounts between 2020 and 2036. As of September 30, 2016, Orion has recorded a valuation allowance of $26,960,000 equaling the net deferred tax asset due to the uncertainty of its realization value in the future. Orion considers future taxable income and ongoing prudent and feasible tax planning strategies in assessing the need for the valuation allowance. In the event that Orion determines that the deferred tax assets are able to be realized, an adjustment to the deferred tax asset would increase income in the period such determination is made.

Uncertain Tax Positions

As of September 30, 2016, the balance of gross unrecognized tax benefits was approximately $113,000, all of which would reduce Orion’s effective tax rate if recognized.

Orion has classified the amounts recorded for uncertain tax benefits in the balance sheet as other liabilities (non-current) to the extent that payment is not anticipated within one year. Orion recognizes penalties and interest related to uncertain tax liabilities in income tax expense. Penalties and interest are immaterial and are included in the unrecognized tax benefits.