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Guarantor and Non-Guarantor Financial Statements - Cash Flow Statement (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Cash flows from operating activities |  |  |  |
Net loss | $ (6,458) | $ (7,341) | $ (10,633) | $ (14,753)
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |
Depreciation and amortization |  |  | 1,808 | 4,199
Change in allowance for doubtful accounts |  |  | 235 | 7
Amortization of debt discount and debt issuance costs |  |  | 680 | 681
Accrued interest |  |  | (24) | (91)
Stock-based compensation |  |  | 1,479 | 2,310
Restricted shares and warrants compensation for services rendered |  |  | 150 | 166
Change in fair value of convertible note embedded derivative liability | 3,344 | 430 | 4,652 | 430
Change in fair value of warrant liability | 1,164 | 140 | 1,628 | 140
Loss on extinguishment of debt | 882 | 293 | 882 | 293
(Increase) / decrease in assets: |  |  |  |
Restricted cash transferred from operating cash |  |  | 0 | 321
Accounts receivable |  |  | (7,468) | 35
Deposits |  |  | 4 | 61
Deferred tax assets |  |  | 336 | (99)
Prepaid expenses and other current assets |  |  | 66 | 68
Increase / (decrease) in liabilities: |  |  |  |
Accounts payable |  |  | 3,409 | 4,771
Accrued license fees and revenue share |  |  | 1,912 | (1,009)
Accrued compensation |  |  | 803 | (280)
Other current liabilities |  |  | (86) | (393)
Other non-current liabilities |  |  | (541) | 20
Intercompany movement of cash |  |  | 0 |
Net cash used in operating activities |  |  | (1,380) | (3,567)
Cash flows from investing activities |  |  |  |
Capital expenditures |  |  | (823) | (1,115)
Net cash used in investing activities |  |  | (823) | (1,115)
Cash flows from financing activities |  |  |  |
Cash received from issuance of convertible notes |  |  | 0 | 16,000
Proceeds from short-term borrowings |  |  | 2,500 | 0
Payments on short-term borrowings |  |  | (247) | (11,000)
Payment of debt issuance costs |  |  | (346) | (2,091)
Options exercised |  |  | 19 | 11
Stock issued for cash in stock offering, net |  |  | (247) |
Net cash provided by financing activities |  |  | 1,926 | 2,920
Effect of exchange rate changes on cash |  |  | (5) | (53)
Net change in cash |  |  | (282) | (1,815)
Cash, beginning of period |  |  | 6,149 | 11,231
Cash, end of period | 5,867 | 9,416 | 5,867 | 9,416
Elimination |  |  |  |
Cash flows from operating activities |  |  |  |
Net loss | 0 | 0 | 0 | 0
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |
Change in fair value of convertible note embedded derivative liability | 0 | 0 | 0 | 0
Change in fair value of warrant liability | 0 | 0 | 0 | 0
Loss on extinguishment of debt | 0 | 0 | 0 | 0
Parent |  |  |  |
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |
Amortization of debt discount and debt issuance costs |  |  |  | 0
Change in fair value of warrant liability |  |  |  | 140
(Increase) / decrease in assets: |  |  |  |
Deferred tax assets |  |  |  | (99)
Cash flows from financing activities |  |  |  |
Cash received from issuance of convertible notes |  |  |  | 0
Payment of debt issuance costs |  |  |  | 0
Parent | Reportable Legal Entities |  |  |  |
Cash flows from operating activities |  |  |  |
Net loss | (7,612) | (3,552) | (12,603) | (7,882)
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |
Depreciation and amortization |  |  | 9 | 5
Change in allowance for doubtful accounts |  |  | 0 | 0
Amortization of debt discount and debt issuance costs |  |  | 680 |
Accrued interest |  |  | (24) | 0
Stock-based compensation |  |  | 1,479 | 2,310
Restricted shares and warrants compensation for services rendered |  |  | 150 | 166
Change in fair value of convertible note embedded derivative liability | 3,344 | 430 | 4,652 | 430
Change in fair value of warrant liability | 1,164 | 140 | 1,628 | 140
Loss on extinguishment of debt | 882 | 293 | 882 | 293
(Increase) / decrease in assets: |  |  |  |
Restricted cash transferred from operating cash |  |  |  | 0
Accounts receivable |  |  | 0 | 17
Deposits |  |  | 0 | 0
Deferred tax assets |  |  | 336 |
Prepaid expenses and other current assets |  |  | 33 | (49)
Increase / (decrease) in liabilities: |  |  |  |
Accounts payable |  |  | (272) | 233
Accrued license fees and revenue share |  |  | 0 | 0
Accrued compensation |  |  | 501 | 582
Other current liabilities |  |  | 2,096 | 1,539
Other non-current liabilities |  |  | (529) | (1,004)
Intercompany movement of cash |  |  | 3 |
Net cash used in operating activities |  |  | (1,651) | (3,121)
Cash flows from investing activities |  |  |  |
Capital expenditures |  |  | 0 | (3)
Net cash used in investing activities |  |  | 0 | (3)
Cash flows from financing activities |  |  |  |
Proceeds from short-term borrowings |  |  | 2,500 |
Payments on short-term borrowings |  |  |  | 0
Payment of debt issuance costs |  |  | (346) |
Options exercised |  |  | 19 | 11
Stock issued for cash in stock offering, net |  |  | (247) |
Net cash provided by financing activities |  |  | 1,926 | 11
Effect of exchange rate changes on cash |  |  | 0 | (53)
Net change in cash |  |  | 275 | (3,166)
Cash, beginning of period |  |  | 258 | 6,712
Cash, end of period | 533 | 3,546 | 533 | 3,546
Guarantor Subsidiaries | Reportable Legal Entities |  |  |  |
Cash flows from operating activities |  |  |  |
Net loss | 1,351 | (3,682) | 2,350 | (6,832)
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |
Depreciation and amortization |  |  | 1,391 | 3,616
Change in allowance for doubtful accounts |  |  | 243 | 7
Amortization of debt discount and debt issuance costs |  |  | 0 | 681
Accrued interest |  |  | 0 | (91)
Stock-based compensation |  |  | 0 | 0
Restricted shares and warrants compensation for services rendered |  |  | 0 | 0
Change in fair value of convertible note embedded derivative liability | 0 | 0 | 0 | 0
Change in fair value of warrant liability | 0 | 0 | 0 | 0
Loss on extinguishment of debt | 0 | 0 | 0 | 0
(Increase) / decrease in assets: |  |  |  |
Restricted cash transferred from operating cash |  |  |  | 321
Accounts receivable |  |  | (7,614) | 325
Deposits |  |  | 4 | 17
Deferred tax assets |  |  | 0 | 0
Prepaid expenses and other current assets |  |  | 45 | 108
Increase / (decrease) in liabilities: |  |  |  |
Accounts payable |  |  | 3,630 | 4,562
Accrued license fees and revenue share |  |  | 1,736 | (1,219)
Accrued compensation |  |  | 302 | (765)
Other current liabilities |  |  | (1,679) | 61
Other non-current liabilities |  |  | (12) | (617)
Intercompany movement of cash |  |  | (28) |
Net cash used in operating activities |  |  | 368 | (468)
Cash flows from investing activities |  |  |  |
Capital expenditures |  |  | (818) | (1,092)
Net cash used in investing activities |  |  | (818) | (1,092)
Cash flows from financing activities |  |  |  |
Cash received from issuance of convertible notes |  |  |  | 16,000
Proceeds from short-term borrowings |  |  | 0 |
Payments on short-term borrowings |  |  |  | (11,000)
Payment of debt issuance costs |  |  | 0 | (2,091)
Options exercised |  |  | 0 | 0
Stock issued for cash in stock offering, net |  |  | 0 |
Net cash provided by financing activities |  |  | 0 | 2,909
Effect of exchange rate changes on cash |  |  | (5) | 0
Net change in cash |  |  | (455) | 1,349
Cash, beginning of period |  |  | 5,333 | 4,466
Cash, end of period | 4,878 | 5,815 | 4,878 | 5,815
Non-Guarantor Subsidiaries | Reportable Legal Entities |  |  |  |
Cash flows from operating activities |  |  |  |
Net loss | (197) | (107) | (380) | (39)
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |
Depreciation and amortization |  |  | 408 | 578
Change in allowance for doubtful accounts |  |  | (8) | 0
Amortization of debt discount and debt issuance costs |  |  | 0 | 0
Accrued interest |  |  | 0 | 0
Stock-based compensation |  |  | 0 | 0
Restricted shares and warrants compensation for services rendered |  |  | 0 | 0
Change in fair value of convertible note embedded derivative liability | 0 | 0 | 0 | 0
Change in fair value of warrant liability | 0 | 0 | 0 | 0
Loss on extinguishment of debt | 0 | 0 | 0 | 0
(Increase) / decrease in assets: |  |  |  |
Restricted cash transferred from operating cash |  |  |  | 0
Accounts receivable |  |  | 146 | (307)
Deposits |  |  | 0 | 44
Deferred tax assets |  |  | 0 | 0
Prepaid expenses and other current assets |  |  | (12) | 9
Increase / (decrease) in liabilities: |  |  |  |
Accounts payable |  |  | 51 | (24)
Accrued license fees and revenue share |  |  | 176 | 210
Accrued compensation |  |  | 0 | (97)
Other current liabilities |  |  | (503) | (1,993)
Other non-current liabilities |  |  | 0 | 1,641
Intercompany movement of cash |  |  | 25 |
Net cash used in operating activities |  |  | (97) | 22
Cash flows from investing activities |  |  |  |
Capital expenditures |  |  | (5) | (20)
Net cash used in investing activities |  |  | (5) | (20)
Cash flows from financing activities |  |  |  |
Cash received from issuance of convertible notes |  |  |  | 0
Proceeds from short-term borrowings |  |  | 0 |
Payments on short-term borrowings |  |  |  | 0
Payment of debt issuance costs |  |  | 0 | 0
Options exercised |  |  | 0 | 0
Stock issued for cash in stock offering, net |  |  | 0 |
Net cash provided by financing activities |  |  | 0 | 0
Effect of exchange rate changes on cash |  |  | 0 | 0
Net change in cash |  |  | (102) | 2
Cash, beginning of period |  |  | 558 | 53
Cash, end of period | $ 456 | $ 55 | $ 456 | $ 55

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- Definition Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585 + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The net cash outflow or inflow from purchases, sales and disposals of property, plant and equipment and other productive assets, including intangibles. + References No definition available. + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=96867065&loc=SL79508275-113901 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References No definition available. + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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