Number of directors to whom the Company agreed to issue warrants to purchase common shares.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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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.

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Face (par) amount of debt instrument at time of issuance.

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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.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Warrants - Credit Agreement (Details)			3 Months Ended	6 Months Ended
Warrants - Credit Agreement (Details)	Aug. 31, 2017 USD ($)	Aug. 30, 2016 USD ($) director	Jun. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)
Short-term Debt [Line Items]
Number of directors to whom the Company agreed to issue warrants \| director		2
Interest expense			$ 362,000	$ 667,000
Accretion of debt discount			$ 296,000	$ 569,000
Directors
Short-term Debt [Line Items]
Number of directors to whom the Company agreed to issue warrants \| director		2
Credit Agreement \| Wells Fargo Term Loan
Short-term Debt [Line Items]
Credit agreement term		1 year
Principal amount		$ 5,000,000
Amount borrowed		$ 5,000,000
Principal repayment	$ 5,000,000