American Superconductor (AMSC) 10-K 5 Jun 19 2018 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	May 30, 2019	Sep. 28, 2018
Document Information [Line Items]
Entity Registrant Name	AMERICAN SUPERCONDUCTOR CORP /DE/
Entity Central Index Key	0000880807
Trading Symbol	amsc
Current Fiscal Year End Date	--03-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding (in shares)		21,449,546
Entity Public Float			$ 143.3
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Current assets:
Cash and cash equivalents	$ 77,483	$ 34,084
Accounts receivable, net	7,855	7,365
Inventory	12,119	19,780
Notes receivable, current portion	2,888	3,000
Prepaid expenses and other current assets	3,053	2,947
Total current assets	103,398	67,176
Property, plant and equipment, net	8,972	12,513
Intangibles, net	2,890	3,230
Note receivable, long term portion		2,559
Goodwill recognized	1,719	1,719
Restricted cash	715	165
Deferred tax assets	1,357	542
Other assets	279	271
Total assets	119,330	88,175
Current liabilities:
Accounts payable and accrued expenses	15,885	12,625
Derivative liabilities	4,942	1,217
Deferred revenue, current portion	7,557	13,483
Total current liabilities	28,384	27,325
Deferred revenue, long term portion	7,962	8,454
Deferred tax liabilities	1,698	110
Other liabilities	93	57
Total liabilities	38,137	35,946
Commitments and contingencies (Note 15)
Stockholders' equity:
Common stock, $0.01 par value, 75,000,000 shares authorized; 21,651,631 and 21,138,689 shares issued at March 31, 2019 and 2018, respectively	216	211
Additional paid-in capital	1,044,622	1,041,113
Treasury stock, at cost, 235,518 and 165,094 shares at March 31, 2019 and 2018, respectively	(2,101)	(1,645)
Accumulated other comprehensive (loss) income	(5)	883
Accumulated deficit	(961,539)	(988,333)
Total stockholders' equity	81,193	52,229
Total liabilities and stockholders' equity	$ 119,330	$ 88,175

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Mar. 31, 2019	Mar. 31, 2018
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	21,651,631	21,138,689
Treasury stock, shares (in shares)	235,518	165,094

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues	$ 56,207	$ 48,403
Cost of revenues	42,190	44,608
Gross profit	14,017	3,795
Operating expenses:
Research and development	9,874	11,594
Selling, general and administrative	22,028	22,577
Gain on Sinovel settlement	(52,698)
Amortization of acquisition related intangibles	340	183
Loss on contingent consideration		71
Restructuring Charges, Total	450	1,527
Total operating expenses	(20,006)	35,952
Operating income (loss)	34,023	(32,157)
Change in fair value of derivatives and warrants	(3,725)	706
Gain on sale of minority interests	127	1,167
Interest income (expense), net	1,117	147
Other income (expense), net	1,599	(2,800)
Income (loss) before income tax expense (benefit)	33,141	(32,937)
Income tax expense (benefit)	6,380	(161)
Net income (loss)	$ 26,761	$ (32,776)
Net income (loss) per common share
Basic (in dollars per share)	$ 1.32	$ (1.73)
Diluted (in dollars per share)	$ 1.29	$ (1.73)
Weighted average number of common shares outstanding
Basic (in shares)	20,335	18,967
Diluted (in shares)	20,726	18,967

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income (loss)	$ 26,761	$ (32,776)
Other comprehensive (loss) gain, net of tax:
Foreign currency translation (losses) gains	(888)	1,386
Total other comprehensive (loss) gain, net of tax	(888)	1,386
Comprehensive income (loss)	$ 25,873	$ (31,390)

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Mar. 31, 2017	14,714
Balance at Mar. 31, 2017	$ 147	$ 1,017,510	$ (1,371)	$ (503)	$ (955,557)	$ 60,226
Issuance of common stock - ESPP (in shares)	40
Issuance of common stock - ESPP		174				174
Issuance of common stock - restricted shares (in shares)	819
Issuance of common stock - restricted shares	$ 8	(8)
Stock-based compensation expense		2,692				2,692
Issuance of stock for 401(k) match (in shares)	81
Issuance of stock for 401(k) match	$ 1	350				351
Issuance of common stock-equity offering (in shares)	4,600
Issuance of common stock-equity offering	$ 46	16,906				16,952
Issuance of stock in business acquisition (in shares)	885
Issuance of stock in business acquisition	$ 9	3,489				3,498
Repurchase of treasury stock			(274)			(274)
Cumulative translation adjustment				1,386		1,386
Net income (loss)					(32,776)	(32,776)
Balance (in shares) at Mar. 31, 2018	21,139
Balance at Mar. 31, 2018	$ 211	1,041,113	(1,645)	883	(988,333)	52,229
Issuance of common stock - ESPP (in shares)	20
Issuance of common stock - ESPP		157				157
Issuance of common stock - restricted shares (in shares)	451
Issuance of common stock - restricted shares	$ 4	(4)
Stock-based compensation expense		3,030				3,030
Issuance of stock for 401(k) match (in shares)	42
Issuance of stock for 401(k) match	$ 1	326				327
Repurchase of treasury stock			(456)			(456)
Cumulative translation adjustment				(888)		(888)
Net income (loss)					26,761	26,761
Balance (in shares) at Mar. 31, 2019	21,652
Balance at Mar. 31, 2019	$ 216	1,044,622	(2,101)	(5)	(961,539)	81,193
Cumulative impact of adoption of ASU No. 2014-09					$ 33	$ 33

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ 26,761	$ (32,776)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operations:
Depreciation and amortization	4,609	11,459
Stock-based compensation expense	3,030	2,692
Provision for excess and obsolete inventory	878	434
Recovery of prepaid taxes		(82)
Gain on sale from minority interest investments	(127)	(1,167)
Change in fair value of warrants and contingent consideration	3,725	(635)
Non-cash interest (income) expense	(224)	19
Other non-cash items	(117)	793
Changes in operating asset and liability accounts:
Accounts receivable	(529)	1,145
Inventory	5,007	(2,423)
Prepaid expenses and other current assets	(365)	558
Accounts payable and accrued expenses	2,839	(2,956)
Deferred revenue	(2,773)	(1,888)
Net cash provided by (used in) operating activities	42,714	(24,827)
Cash flows from investing activities:
Purchase of property, plant and equipment	(952)	(2,534)
Proceeds from the sale of property, plant and equipment	3,138	16,910
Cash paid for acquisition, net of cash received		74
Proceeds from sale of minority interests	127	1,167
Change in other assets	(144)	(15)
Net cash provided by investing activities	2,169	15,602
Cash flows from financing activities:
Employee taxes paid related to net settlement of equity awards	(456)	(274)
Repayment of debt		(1,575)
Proceeds from public equity offering, net		16,952
Proceeds from exercise of employee stock options and ESPP	157	175
Net cash provided by (used in) financing activities	(299)	15,278
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(635)	452
Net increase in cash, cash equivalents and restricted cash	43,949	6,505
Cash, cash equivalents and restricted cash at beginning of year	34,249	27,744
Cash, cash equivalents and restricted cash at end of year	78,198	34,249
Supplemental schedule of cash flow information:
Issuance of common stock in connection with the purchase of Infinia Technology Corporation		3,498
Cash paid for income taxes, net of refunds	2,859	1,576
Issuance of common stock to settle liabilities	457	350
Deferred gain on sale of 64 Jackson Road building		105
Cash paid for interest		$ 42

Note 1 - Nature of the Business

Note 1 - Nature of the Business and Operations and Liquidity	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. Nature of the Business and Operations American Superconductor Corporation (together with its subsidiaries, “AMSC®” or the “Company”) was founded on April 9, 1987. The Company’s consolidated financial statements have been prepared on a going concern basis in accordance with United States generally accepted accounting principles (“GAAP”) and the Securities and Exchange Commission’s (“SEC”) instructions to Form 10 Liquidity The Company has historically experienced recurring operating losses, although the Company generated net income of $26.8 March 31, 2019, March 31, 2019, $961.5 2018, March 31, 2019, $78.2 March 31, 2019 $42.7 On July 3, 2018, $57.5 two first $32.5 July 4, 2018, nine December 31, 2018, second $25.0 December 27, 2018. 2018 $52.7 On February 1, 2018, 64 64 $23.0 $17.0 $6.0 64 March 28, 2018, $16.9 1.96%. second second first $3.0 March 28, 2019. In December 2015, $210.0 three The Company believes that based on the information presented above and its annual management assessment, it has sufficient liquidity to fund its operations and capital expenditures for the next twelve March 31, 2019. no

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. Basis of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions are eliminated. Certain reclassifications of prior years’ amounts have been made to conform to the current year presentation. These reclassifications had no Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company bases its estimates on historical experience and various other factors believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not may may Cash Equivalents Cash equivalents consist of highly liquid instruments with maturities of three 1 Accounts Receivable Accounts receivable consist of amounts owed by commercial companies and government agencies. Accounts receivable are stated net of allowances for doubtful accounts. The Company’s accounts receivable relate principally to a limited number of customers. As of March 31, 2019, 21% 3, 16% no 10% March 31, 2018, 32% 17% no 10% may may may Inventory Inventories include material, direct labor and related manufacturing overhead, and are stated at the lower of cost, determined on a first first first first Program costs may At each balance sheet date, the Company evaluates its ending inventories for excess quantities and obsolescence. Inventories that management considers excess or obsolete are reserved. Management considers forecasted demand in relation to the inventory on hand, competitiveness of product offerings, market conditions and product life cycles when determining excess and obsolescence and net realizable value adjustments. Once inventory is written down and a new cost basis is established, it is not For the fiscal years ended March 31, 2019 2018, $0.9 $0.4 Property, Plant and Equipment Property, plant and equipment are carried at cost less accumulated depreciation and amortization. The Company accounts for depreciation and amortization using the straight-line method to allocate the cost of property, plant and equipment over their estimated useful lives as follows: Asset Classification Estimated Useful Life in Years Building 40 Process upgrades to the building 10-40 Machinery and equipment 3-10 Furniture and fixtures 3-5 Leasehold improvements Shorter of the estimated useful life or the remaining lease term Expenditures for maintenance and repairs are expensed as incurred. Upon retirement or other disposition of assets, the costs and related accumulated depreciation are eliminated from the accounts and the resulting gain or loss is reflected in operating expenses. Valuation of Long-Lived Assets The Company periodically evaluates its long-lived assets, consisting principally of fixed assets and amortizable intangible assets, for potential impairment. In accordance with the applicable accounting guidance for the treatment of long-lived assets, the Company reviews the carrying value of its long-lived assets or asset group that is held and used, including intangible assets subject to amortization, for impairment whenever events and circumstances indicate that the carrying value of the assets may not may not There were no March 31, 2019 2018. Goodwill Goodwill represents the excess of cost over net assets of acquired businesses that are consolidated. The Company performs its annual assessment of goodwill on February 28th may not first not not 4, The Company performed its annual assessment of goodwill on February 28, 2019 no March 31, 2019 no no March 31, 2018 Equity Method Investments The Company uses the equity method of accounting for investments in entities in which it has an ownership interest, but does not The Company periodically tests its investments for potential impairment whenever events and circumstances indicate a loss in the fair value of the investments may no March 31, 2019 2018. Revenue Recognition On April 1, 2018, 606, Revenue from Contracts with Customers not Revenue contracts are defined as an arrangement that creates enforceable rights and obligations of both parties where collection of the contract price is deemed probable. five can occur at the time of delivery, installation or post-installation where applicable. For certain arrangements, such as contracts to perform research and development, prototype development contracts and certain customized product sales, the Company records revenues using the over-time method, measured by the relationship of costs incurred to total estimated contract costs. Over-time revenue recognition accounting is predominantly used on certain turnkey power systems installations for electric utilities and long-term prototype development contracts with the U.S. government. The Company follows this method when any of the three no The Company enters into sales arrangements that may may Performance obligations are separated into more than one 1 2 The Company reviews SSP and the related margins at least annually. The Company’s license agreements provide either for the payment of contractually determined paid-up front license fees or milestone based payments in consideration for the grant of rights to manufacture and or sell products using its patented technologies or know-how. Some of these agreements provide for the release of the licensee from past and future intellectual property infringement claims. When the Company can determine that it has no may no not Existing customers are subject to ongoing credit evaluations based on payment history and other factors. If it is determined that collectability of any portion of the contract value is not not Infrequently, the Company receives requests from customers to hold product being purchased from us for a valid business purpose. The Company recognizes revenues for such arrangements provided the transaction meets, at a minimum, the following criteria: a valid business purpose for the arrangement exists; risk of ownership of the purchased product has been transferred to the buyer; there is a fixed delivery date that is reasonable and consistent with the buyer’s business purpose; the product is ready for shipment; the Company has no no March 31, 2019. March 31, 2018, $3.7 The Company has elected to record taxes collected from customers on a net basis and does not The Company’s contract assets and liabilities primarily relate to the timing differences between cash received from a customer in connection with contractual rights to invoicing and the timing of revenue recognition following completion of performance obligations. The Company's accounts receivable balance is made up entirely of customer contract related balances. See Note 3, 606, Revenue from Contracts with Customers Product Warranty Warranty obligations are incurred in connection with the sale of the Company’s products. The Company generally provides a one three Research and Development Costs Research and development costs are expensed as incurred. Income Taxes The Company’s provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carry-forwards using expected tax rates in effect in the years during which the differences are expected to reverse. Deferred income taxes are recognized for the tax consequences in future years of differences between the tax bases of assets and liabilities and their financial reporting amounts at each fiscal year end based on enacted tax laws and statutory tax rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce net deferred tax assets to the amount expected to be realized. The Company has provided a valuation allowance against its U.S. and China deferred income tax assets since the Company believes that it is more likely than not not Accounting for income taxes requires a two first not second 50% not 13, On December 22, 2017, 2017 not 34% 21% December 31, 2017 one 13, Stock-Based Compensation The Company accounts for stock-based payment transactions using a fair value-based method and recognizes the related expense in the results of operations. Stock-based compensation is estimated at the grant date based on the fair value of the award and is recognized as expense over the requisite service period of the award. The fair value of restricted stock awards is determined by reference to the fair market value of the Company’s common stock on the date of grant. The Company uses the Black-Scholes option pricing model to estimate the fair value of awards with service and performance conditions. For awards with service conditions only, the Company recognizes compensation cost on a straight-line basis over the requisite service/vesting period. For awards with performance conditions, accruals of compensation cost are made based on the probable outcome of the performance conditions. The cumulative effect of changes in the probability outcomes are recorded in the period in which the changes occur. Determining the appropriate fair value model and related assumptions requires judgment, including estimating stock price volatilities of the Company’s common stock and expected terms. The expected volatility rates are estimated based on historical and implied volatilities of the Company’s common stock. The expected term represents the average time that the options that vest are expected to be outstanding based on the vesting provisions and the Company’s historical exercise, cancellation and expiration patterns. The Company estimates pre-vesting forfeitures when recognizing compensation expense based on historical and forward-looking factors. Changes in estimated forfeiture rates and differences between estimated forfeiture rates and actual experience may may The Company's adoption of ASU 2018 07 Compensation - Stock Compensation (Topic 718 April 1, 201 8 also resulted in the acc to be accounted for in the same manner as other share-based payments for employees, with the measurement being based on the fair value at the grant date. The non-employee share based payments will be included within the Company's stock compensation currently reported. Computation of Net Income (Loss) per Common Share Basic net income (loss) per share (“EPS”) is computed by dividing net loss by the weighted-average number of common shares outstanding for the period. Diluted EPS is computed by dividing the net loss by the weighted-average number of common shares and dilutive common equivalent shares outstanding during the period, calculated using the treasury stock method. Common equivalent shares include the effect of restricted stock, exercise of stock options and warrants and contingently issuable shares. For the fiscal years ended March 31, 2019 2018, 907,988, 1,157,895, not reconciles March 31, 2019 2018 Fiscal year ended March 31, 2019 2018 Numerator: Net income (loss) $ 26,761 $ (32,776 ) Denominator: Weighted-average shares of common stock outstanding 21,265 19,621 Weighted-average shares subject to repurchase (930 ) (654 ) Shares used in per-share calculation — basic 20,335 18,967 Shares used in per-share calculation — diluted 20,726 18,967 Net income (loss) per share — basic $ 1.32 $ (1.73 ) Net income (loss) per share — diluted $ 1.29 $ (1.73 ) Foreign Currency Translation The functional currency of all the Company’s foreign subsidiaries is the U.S. dollar, except for AMSC Austria, for which the local currency (Euro) is the functional currency, and AMSC China, for which the local currency (Renminbi) is the functional currency. The assets and liabilities of AMSC Austria and AMSC China are translated into U.S. dollars at the exchange rate in effect at the balance sheet date and income and expense items are translated at average rates for the period. Cumulative translation adjustments are excluded from net loss and shown as a separate component of stockholders’ equity. Net foreign currency gains and losses are included in other income (expense), net on the consolidated statement of operations and were $1.6 $2.8 March 31, 2019 2018, no Risks and Uncertainties The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates and would impact future results of operations and cash flows. The Company invests its available cash in high credit, quality financial instruments and invests primarily in investment-grade marketable securities, including, but not Several of the Company’s government contracts are being funded incrementally, and as such, are subject to the future authorization, appropriation, and availability of government funding. The Company has a history of successfully obtaining financing under incrementally-funded contracts with the U.S. government and it expects to continue to obtain additional contract modifications in the year ending March 31, 2020 Contingencies From time to time, the Company may not not not not 15, Disclosure of Fair Value of Financial Instruments The Company’s financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, warrants to purchase shares of common stock, derivatives, and a senior secured term loan. The carrying amounts of cash and cash equivalents, accounts receivable, short-term debt, accounts payable, and accrued expenses due to their short nature approximate fair value at March 31, 2019 2018. 3 5,

Note 3 - Revenue Recognition

Note 3 - Revenue Recognition	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	3. On April 1, 2018, 606, Revenue from Contracts with Customers, not April 1, 2018 $0.1 not The adoption of this guidance has led to recognizing certain revenue transactions sooner than in the past on certain contracts, as the Company will need to estimate the revenue it will be entitled to upon contract completion, and later on other contracts, such as Consulting and Statement of Work transactions, due to the lack of an enforceable right to payment for performance obligations satisfied over time, specifically in the technology product line. The Company does not In addition, the FASB issued Accounting Standards Update (“ASU”) 2017 05, Other Income - Gains and Losses from the Derecognition of Non-financial Assets (Subtopic 610 20 February 2017, 610 20, Other Income - Gains and Losses from the Derecognition of Non-financial Assets 606 2017 05 April 1, 2018, March 28, 2018 $0.1 The cumulative effect to the Company’s consolidated April 1, 2018 March 31, 2018 Opening Adjustment April 1, 2018 Assets: Accounts Receivable $ 7,365 $ (678 ) $ 6,687 Inventory 19,780 (1,599 ) 18,181 Prepaid expenses and other current assets 2,947 2,277 5,224 Notes receivable, long term portion 2,559 105 2,664 Liabilities and Stockholders' Equity: Accounts payable and accrued expenses $ (12,625 ) $ (2,729 ) $ (15,354 ) Deferred revenue (13,483 ) 2,657 (10,826 ) Accumulated deficit $ (988,333 ) $ (33 ) $ (988,366 ) Included in the opening adjustment are reclassifications for accounts receivable, deferred program costs and deferred revenue for previous balances related to agreements that no 606. March 31, 2019, 606 The Company’s revenues in its Grid segment are derived primarily through enabling the transmission and distribution of power, providing planning services that allow it to identify power grid needs and risks, and developing ship protection systems for the U.S. Navy. The Company’s revenues in its Wind segment are derived primarily through supplying advanced power electronics and control systems, licensing its highly engineered wind turbine designs, and providing extensive customer support services to wind turbine manufacturers. The Company records revenue based on a five 606. March 31, 2019, 85% In the Company's equipment and system product line, each contract with a customer summarizes each product sold to a customer, which typically represents distinct performance obligations. A contract's transaction price is allocated to each distinct performance obligation using the respective standalone selling price which is determined primarily using the cost plus expected margin approach and recognized as revenue when, or as, the performance obligation is satisfied. The majority of the Company’s product sales transfer control to the customer in line with the contracted delivery terms and revenue is recorded at the point in time when title and risk transfer to the customer, as the Company has determined that this is the point in time that control transfers to the customer. In the Company's service and technology development product line, there are several different types of transactions and each begins with a contract with a customer that summarizes each product sold to a customer, which typically represents distinct performance obligations. The technology development transactions are primarily for activities that have no not not not 606, no The Company's service contracts can include a purchase order from a customer for specific goods in which each item is a distinct performance obligation satisfied at a point in time at which control of the goods is transferred to the customer which occurs based on the contracted delivery terms or when the requested service work has been completed. The transaction price for these goods is allocated based on the adjusted market approach considering similar transactions under similar circumstances. Service contracts are also derived from ongoing maintenance contracts and extended service-type warranty contracts. In these transactions, the Company is contracted to provide an ongoing service over a specified period of time. As the customer is consuming the benefits as the service is being provided the revenue is recognized over time ratably. The Company’s policy is to not The Company provides assurance-type warranties on all product sales for a term of typically one two four The Company records revenue net of sales tax, value added tax, excise tax and other taxes collected concurrent with revenue-producing activities. The Company has elected to recognize the cost for freight and shipping when control over the products sold passes to customers and revenue is recognized. The Company has elected to recognize incremental costs of obtaining a contract as expense when incurred except in contracts where the amortization period would exceed twelve not twelve The Company’s contracts with customers do not may 30 60 The following tables disaggregate the Company’s revenue by product line and by shipment destination: Year Ended Product Line: Grid Wind Equipment and systems $ 26,645 $ 19,287 Services and technology development 7,645 2,630 Total $ 34,290 $ 21,917 Region: Americas $ 22,811 $ 112 Asia Pacific 7,267 21,200 EMEA 4,212 605 Total $ 34,290 $ 21,917 In the fiscal years ended March 31, 2019 2018, 74% 64% As of March 31, 2019 March 31, 2018, 6, 7, Unbilled AR Deferred Program Costs Contract Liabilities Beginning balance as of March 31, 2018 $ 3,016 $ 2,567 $ 21,937 Impact of adoption of ASC 606 — (1,599 ) (2,657 ) Increases for costs incurred to fulfill performance obligations — 1,585 — Increase (decrease) due to customer billings (12,076 ) — 20,540 Decrease due to cost recognition on completed performance obligations — (2,212 ) — Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations 11,324 (9 ) (23,084 ) Other changes and FX impact (51 ) (14 ) (1,215 ) Ending balance as of March 31, 2019 $ 2,213 $ 318 $ 15,521 The Company’s remaining performance obligations represent the unrecognized revenue value of the Company’s contractual commitments. The Company’s performance obligations may March 31, 2019, 606 twelve $47.5 $11.6 thirteen sixty twelve twelve first three twelve twelve not not The following table sets forth customers who represented 10% March 31, 2019 2018: Year Ended Reportable March 31, Segment 2019 2018 Inox Wind Limited Wind 34% 27% Vestas Grid 15% <10%

Note 4 - Acquisition and Relate

Note 4 - Acquisition and Related Goodwill	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Business Combination Disclosure [Text Block]	4. Acquisition of Infinia Technology Corporation On September 25, 2017, $3.8 2009 The following table summarizes the consideration paid for ITC and the amounts of the assets acquired and liabilities assumed recognized at the acquisition date, as well as the fair value at the acquisition date (in millions): September 25, 2017 Consideration Cash $ 0.1 Equity (884,890 shares of common stock at $4.02 per share) 3.6 Contingent consideration 0.6 Total Consideration $ 4.3 Recognized amounts of identifiable assets acquired and liabilities assumed Core technology and know-how $ 3.4 Working capital 0.2 Property, plant and equipment 0.0 Total identifiable net assets $ 3.6 Long-term deferred tax liability 1.1 Goodwill recognized $ 1.7 The results of ITC's operations, which were not September 25, 2017, March 31, 2019, April 1, 2017, not Goodwill At the time of the Acquisition, the Company allocated the purchase price to the assets acquired and liabilities assumed at their estimated fair values as of the date of Acquisition. The excess of the purchase price paid by the Company over the estimated fair value of net assets acquired of $1.7 two The Company performed its annual assessment of goodwill on February 28, 2019 no March 31, 2019 no no March 31, 2018.

Note 5 - Fair Value Measurement

Note 5 - Fair Value Measurements	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Fair Value Disclosures [Text Block]	5. A valuation hierarchy for disclosure of the inputs to valuation used to measure fair value has been established. This hierarchy prioritizes the inputs into three Level 1 - Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. Level 2 - Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not Level 3 - Unobservable inputs that reflect the Company’s assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data. The Company provides a gross presentation of activity within Level 3 1 2 1 2 3 not 1, 2 3 March 31, 2019. A financial asset’s or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The following table provides the assets and liabilities carried at fair value on a recurring basis, measured as of March 31, 2019 2018 Total Carrying Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2019: Assets: Cash equivalents $ 41,839 $ 41,839 $ — $ — Derivative liabilities: Warrants $ 4,942 $ — $ — $ 4,942 Total Carrying Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2018: Assets: Cash equivalents $ 32,589 $ 32,589 $ — $ — Derivative liabilities: Warrants $ 1,217 $ — $ — $ 1,217 The table below reflects the activity for the Company’s major classes of liabilities measured at fair value on a recurring basis (in thousands): Warrants April 1, 2018 $ 1,217 Mark to market adjustment 3,725 March 31, 2019 $ 4,942 Warrants April 1, 2017 $ 1,923 Mark to market adjustment (706 ) March 31, 2018 $ 1,217 Valuation Techniques Cash Equivalents Cash equivalents consist of highly liquid instruments with maturities of three 1 Warrants Warrants were issued in conjunction with a Securities Purchase Agreement (the “Purchase Agreement”) with Capital Ventures International (“CVI”), an equity offering to Hudson Bay Capital in November 2014, October 4, 2017. 12 The Company relies on various assumptions in a lattice model to determine the fair value of warrants. The Company has valued the warrants within Level 3 12,

Note 6 - Accounts Receivable

Note 6 - Accounts Receivable	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Accounts Receivable [Text Block]	6. Accounts receivable at March 31, 2019 March 31, 2018 March 31, 2019 March 31, 2018 Accounts receivable (billed) $ 5,642 $ 4,403 Accounts receivable (unbilled) 2,213 3016 Less: Allowance for doubtful accounts — (54 ) Accounts receivable, net $ 7,855 $ 7,365

Note 7 - Inventory

Note 7 - Inventory	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Inventory Disclosure [Text Block]	7. Inventory, net of reserves, at March 31, 2019 March 31, 2018 March 31, 2019 March 31, 2018 Raw materials $ 5,474 $ 7,526 Work-in-process 1,922 920 Finished goods 4,405 8,767 Deferred program costs 318 2,567 Net inventory $ 12,119 $ 19,780 The Company recorded inventory write-downs of $0.9 $0.4 March 31, 2019 2018, Deferred program costs as of March 31, 2019 March 31, 2018

Note 8 - Note Receivable

Note 8 - Note Receivable	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Notes Receivable [Text Block]	8. AMSC entered into a purchase and sale agreement dated February 1, 2018 64 64 $23.0 $1.0 $6.0 The note receivable is due in two $3.0 1.96% first March 28, 2019 second May 23, 2019. $5.7 6%, $0.3 March 31, 2019, $0.1 In addition, the resulting gain of $0.1 2017 05 2014 09. Note receivable as of March 31, 2019 March 31, 2019 March 31, 2018 Current assets Note receivable, current $ 3,000 $ 3,000 Note receivable discount (112 ) — Total current note receivable $ 2,888 $ 3,000 Long term assets Note receivable, long term $ — $ 3,000 Note receivable discount — (336 ) Deferred gain on sale — (105 ) Total long term note receivable $ — $ 2,559

Note 9 - Property, Plant and Eq

Note 9 - Property, Plant and Equipment	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	9. The cost and accumulated depreciation of property and equipment at March 31, 2019 2018 March 31, 2019 March 31, 2018 Construction in progress - equipment $ 603 $ 654 Equipment and software 45,705 72,760 Furniture and fixtures 1,269 1,878 Leasehold improvements 1,955 1,426 Property, plant and equipment, gross 49,532 76,718 Less accumulated depreciation (40,560 ) (64,205 ) Property, plant and equipment, net $ 8,972 $ 12,513 Depreciation expense was $4.3 $11.0 March 31, 2019 2018, March 31, 2018 $4.9

Note 10 - Intangible Assets

Note 10 - Intangible Assets	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	10. Intangible assets at March 31, 2019 2018 2019 2018 Gross Amount Accumulated Amortization Net Book Value Gross Amount Accumulated Amortization Net Book Value Estimated Useful Life Core technology and know-how $ 4,970 $ (2,080 ) $ 2,890 $ 8,703 $ (5,473 ) $ 3,230 5-10 The Company recorded intangible amortization expense of $0.3 $0.5 March 31, 2019, 2018, Expected future amortization expense related to intangible assets is as follows (in thousands): Fiscal years ending March 31, Total 2020 340 2021 340 2022 340 2023 340 2024 340 Thereafter 1,190 Total $ 2,890 The geographic composition of intangible assets is as follows (in thousands): March 31, 2019 2018 Intangible assets by geography: U.S. $ 2,890 $ 3,230 Total $ 2,890 $ 3,230 The business segment composition of intangible assets is as follows (in thousands): March 31, 2019 2018 Intangible assets by business segments: Grid $ 2,890 $ 3,230 Total $ 2,890 $ 3,230

Note 11 - Accounts Payable and

Note 11 - Accounts Payable and Accrued Expenses	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	11. Accounts payable and accrued expenses at March 31, 2019 March 31, 2018 consisted March 31, 2019 March 31, 2018 Accounts payable $ 2,939 $ 3,096 Accrued inventories in-transit 244 1,207 Accrued other miscellaneous expenses 1,759 2,412 Advanced deposits 631 — Accrued compensation 5,404 3,605 Income taxes payable 3,363 536 Accrued warranty 1,545 1,769 Total $ 15,885 $ 12,625 The Company generally provides a one three Product warranty activity was as follows (in thousands): Fiscal Years Ended March 31, 2019 2018 Balance at beginning of period $ 1,769 $ 2,344 Change in accruals for warranties during the period 727 890 Settlements during the period (951 ) (1,465 ) Balance at end of period $ 1,545 $ 1,769

Note 12 - Warrants and Derivati

Note 12 - Warrants and Derivative Liabilities	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	12. The Company accounts for its warrants and contingent consideration as liabilities due to certain adjustment provisions within the instruments, which require that they be recorded at fair value. The warrants are subject to revaluation at each balance sheet date and any change in fair value is recorded as a change in fair value of warrants until the earlier of its expiration or its exercise at which time the warrant liability will be reclassified to equity. The Company calculated the fair value of the warrants utilizing an integrated lattice model. See Note 5, Hercules Warrant The Company issued Hercules warrants to purchase 13,927 25,641 December 19, 2014, second 58,823 $7.85 May 2017, September 2017 January 2017, June 30, 2020 . $0.4 March 31, 2019 $0.1 March 31, 2018. April 8, 2019 22,821 April 17, 2019. November 2014 On November 13, 2014, 909,090 one 0.9 one 818,181 “November 2014 November 2014 $7.81 November 13, 2019 . Following is a summary of the key assumptions used to calculate the fair value of the November 2014 March 31, December 31, September 30, June 30, Fiscal Year 2018 2019 2018 2018 2018 Risk-free interest rate 2.43% 2.61% 2.62% 2.40% Expected annual dividend yield — — — — Expected volatility 75.61% 70.29% 63.66% 67.40% Term (years) 0.62 0.87 1.12 1.37 Fair value $4.6 million $3.6 million $1.3 million $1.6 million March 31, December 31, September 30, June 30, Fiscal Year 2017 2018 2017 2017 2017 Risk-free interest rate 2.20% 1.87% 1.49% 1.44% Expected annual dividend yield — — — — Expected volatility 65.86% 65.86% 65.64% 67.21% Term (years) 1.62 1.87 2.12 2.37 Fair value $1.1 million $0.4 million $0.8 million $0.9 million The Company recorded a net loss, resulting from an increase in the fair value of the November 2014 $3.5 November 2014 $0.7 March 31, 2019 2018, Contingent Consideration The Company evaluated the ITC acquisition Make Whole Payment set forth in the SPA, which ultimately required net settlement cash, and determined the contingent consideration qualified for liability classification and derivative treatment under ASC 815. Following is a summary of the key assumptions used to calculate the fair value of the contingent consideration related to the ITC acquisition: Fiscal Year 2017 September 30, 2017 September 25, 2017 Risk-free interest rate 1.09% 1.09% Expected annual dividend yield — — Expected volatility 66.54% 65.71% Term (years) 0.31 0.32 Fair value $0.4 million $0.6 million All of the stock related to this liability was sold as of December 5, 2017 $0.7 January 5, 2018. no December 31, 2017. $0.1 March 31, 2018.

Note 13 - Income Taxes

Note 13 - Income Taxes	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Income Tax Disclosure [Text Block]	13. Loss before income taxes for the fiscal years ended March 31, 2019, 2018 follows Fiscal years ended March 31, 2019 2018 Income/(Loss) before income tax expense: U.S. $ (24,289 ) $ (100,341 ) Foreign 57,430 67,404 Total $ 33,141 $ (32,937 ) The components of income tax expense (benefit) attributable to continuing operations consist of the following (in thousands): Fiscal years ended March 31, 2019 2018 Current Federal $ 1,246 $ 374 Foreign 4,399 592 Total current 5,645 966 Deferred Federal 1,588 (1,086 ) Foreign (853 ) (41 ) Total deferred 735 (1,127 ) Income tax (benefit) expense $ 6,380 $ (161 ) The reconciliation between the statutory federal income tax rate and the Company’s effective income tax rate is shown below. Fiscal years ended March 31, 2019 2018 Statutory federal income tax rate (21 )% (31 )% Federal rate change — 351 Deemed dividend and dividends paid — 7 Foreign income tax rate differential 4 (62 ) Reversal of uncertain tax benefits — (3 ) True-up of NOLs (60 ) 11 GILTI 37 — Other 3 (5 ) Valuation allowance 92 (268 ) Effective income tax rate -19 % — % The following is a summary of the principal components of the Company’s deferred tax assets and liabilities (in thousands): March 31, 2019 March 31, 2018 Deferred tax assets: Net operating loss carryforwards $ 181,657 $ 210,194 Research and development and other tax credit carryforwards 13,046 12,828 Accruals and reserves 14,781 22,406 Fixed assets and intangible assets 1,553 1,568 Other 2,785 12,996 Gross deferred tax assets 213,822 259,992 Valuation allowance (196,340 ) (227,686 ) Total deferred tax assets 17,482 32,306 Deferred tax liabilities: Intercompany Debt (16,028 ) (29,130 ) Other (1,794 ) (2,744 ) Total deferred tax liabilities (17,822 ) (31,874 ) Net deferred tax asset $ (340 ) $ 432 The Tax Cuts and Jobs Act ("Tax Reform Act"), that was signed into law on December 22, 2017, March 31, 2018. No. 118 118" one December 22, 2017 118 2017 not The Company has elected to recognize the income tax related to GILTI as a period expense in the period the tax is incurred or expected to occur for the year ended March 31, 2019. no The Company has provided a full valuation allowance against its net deferred income tax assets in the U.S. and China since it is more likely than not not $196.5 March 31, 2019 not At March 31, 2019, $776.0 $198.0 March 31, 2019 2039. $30.0 $3.7 $0.3 $10.1 $3.5 March 31, 2019 2039. At March 31, 2019, $21.8 five December 31, 2019. Section 382 1986, may June 15, 2017 May 2017 382 not $0.3 March 31, 2018 382 not The total amount of undistributed foreign earnings available to be repatriated at March 31, 2019 $30.0 $1.7 The Company has not not Accounting for income taxes requires a two first not second 50% not not March 31, 2019. not March 31, 2019 2018. There were no March 31, 2019 2018. The Company accounts for interest and penalties related to uncertain tax positions as part of its provision for federal and state income taxes. Any unrecognized tax benefits, if recognized, would favorably affect its effective tax rate in any future period. The Company does not twelve The Company conducts business globally and, as a result, its subsidiaries file income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. Major tax jurisdictions include the U.S., China, Romania and Austria. All U.S. income tax filings for fiscal years ended March 31, 1996 2019 All fiscal years from the fiscal year ended March 31, 2014 2019 2013 2014 no March 31, 2019, 2016 March 31, 2014 2019

Note 14 - Stockholders' Equity

Note 14 - Stockholders' Equity	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	14. Stock-Based Compensation Plans As of March 31, 2019, two 2007 “2007 2007 “2007 2007 2007 July 29, 2016. The 2007 422 1986, 10 3 5 3 As of March 31, 2019, 2007 not 2007 $40,000 two $40,000 3 As of March 31, 2019, 2007 367,507 2007 77,587 Stock-Based Compensation The components of employee stock-based compensation for the years ended March 31, 2019 2018 Fiscal years ended March 31, 2019 2018 Stock options $ 221 $ 227 Restricted stock and stock awards 2,781 2,434 Employee stock purchase plan 28 31 Total stock-based compensation expense $ 3,030 $ 2,692 The estimated fair value of the Company’s stock-based awards, less expected annual forfeitures, is amortized over the awards’ service period. There is no March 31, 2019. $2.6 March 31, 2019. 1.5 The following table summarizes employee stock-based compensation expense by financial statement line item for the fiscal years ended March 31, 2019 2018 Fiscal years ended March 31, 2019 2018 Cost of revenues $ 116 $ 137 Research and development 365 373 Selling, general and administrative 2,549 2,182 Total $ 3,030 $ 2,692 The following table summarizes the information concerning currently outstanding and exercisable employee and non-employee options: Options / Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term Aggregate Intrinsic Value (thousands) Outstanding at March 31, 2018 280,891 $ 69.51 Canceled/forfeited (116,626 ) 31.76 Outstanding at March 31, 2019 164,265 $ 96.30 3.1 $ — Exercisable at March 31, 2019 164,265 $ 96.30 3.0 $ — Fully vested and expected to vest at March 31, 2019 164,265 $ 96.30 3.1 $ — There were no March 31, 2019 2018. March 31, 2019 2018 no The following table summarizes the employee and non-employee restricted stock activity for the year ended March 31, 2019: Shares Weighted Average Grant Date Fair Value Intrinsic Aggregate Value (thousands) Outstanding at March 31, 2018 896,486 $ 4.65 Granted 532,053 6.9 Vested (405,802 ) 6.1 Forfeited (68,789 ) 5.04 Outstanding at March 31, 2019 953,948 $ 5.26 $ 12,268 The total fair value of restricted stock that was granted during the fiscal years ended March 31, 2019 2018 $3.6 $3.3 March 31, 2019 2018 $2.6 $1.4 There we re 57,000 March 31, 2019 267,125 March 31, 2018. The remaining shares awarded vest upon the passage of time. For awards that vest upon the passage of time, expense is being recorded over the vesting period. Employee Stock Purchase Plan The Company has the 2000 15% March 31, 2019, 239,954 $0.1 March 31, 2019 2018, Equity Offerings On May 10, 2017, 30 600,000 March 31, 2018 $17.0

Note 15 - Commitments and Conti

Note 15 - Commitments and Contingencies	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	15. Purchase Commitments The Company periodically enters into non-cancelable purchase contracts in order to ensure the availability of materials to support production of its products. Purchase commitments represent enforceable and legally binding agreements with suppliers to purchase goods or services. The Company periodically assesses the need to provide for impairment on these purchase contracts and record a loss on purchase commitments when required. Lease Commitments Operating leases include minimum payments under leases for the Company’s facilities and certain equipment. The Company’s primary leased facilities are located in Klagenfurt, Austria; Suzhou, China; Ayer, Massachusetts; Timisoara, Romania; and Pewaukee, Wisconsin; with a combined total of approximately 187,000 November 2022 six not 2, Minimum future lease commitments at March 31, 2019 Fiscal years ended March 31, Total 2020 $ 1,121 2021 894 2022 648 2023 416 2024 65 Total $ 3,144 Rent expense under the operating leases mentioned above was as follows (in thousands): Fiscal years ended March 31, 2019 2018 Rent expense $ 1,286 $ 1,510 Legal Contingencies From time to time, the Company is involved in legal and administrative proceedings and claims of various types. The Company records a liability in its consolidated financial statements for these matters when a loss is known or considered probable and the amount can be reasonably estimated. The Company reviews these estimates each accounting period as additional information is known and adjusts the loss provision when appropriate. If a matter is both probable to result in a liability and the amounts of loss can be reasonably estimated, the Company estimates and discloses the possible loss or range of loss to the extent necessary to make the consolidated financial statements not not not Other The Company enters into long-term construction contracts with customers that require the Company to obtain performance bonds. The Company is required to deposit an amount equivalent to some or all the face amount of the performance bonds into an escrow account until the termination of the bond. When the performance conditions are met, amounts deposited as collateral for the performance bonds are returned to the Company. In addition, the Company has various contractual arrangements in which minimum quantities of goods or services have been committed to be purchased on an annual basis. As of March 31, 2019, $0.7

Note 16 - Employee Benefit Plan

Note 16 - Employee Benefit Plans	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	16. The Company has implemented a defined contribution plan (the “Plan”) under Section 401 50% first 6% $0.3 March 31, 2019, $0.4 March 31, 2018,

Note 17 - Restructuring

Note 17 - Restructuring	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	17. The Company accounts for charges resulting from operational restructuring actions in accordance with ASC Topic 420, Exit or Disposal Cost Obligations 420” 712, Compensation—Nonretirement Postemployment Benefits 712” The $0.5 March 31, 2019 first 2018 On April 3, 2017, 8%, April 4, 2017. $1.3 March 31, 2018, $0.5 one June 30, 2017. 18 December 2018. The following table presents restructuring charges and cash payments during the years ended March 31, 2019 2018 Severance pay and benefits Facility exit and Relocation costs Total Accrued restructuring balance at April 1, 2018 $ 262 $ 173 $ 435 Charges to operations — 450 450 Cash payments (262 ) (623 ) (885 ) Accrued restructuring balance at March 31, 2019 $ — $ — $ — Accrued restructuring balance at April 1, 2017 $ — $ — $ — Charges to operations 1,325 202 1,527 Cash payments (1,063 ) (29 ) (1,092 ) Accrued restructuring balance at March 31, 2018 $ 262 $ 173 $ 435 All restructuring charges discussed above are included within restructuring in the Company’s consolidated statements of operations. The Company includes accrued restructuring within accounts payable and accrued expenses in the consolidated balance sheets.

Note 18 - Business Segments

Note 18 - Business Segments	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	18. The Company reports its financial results in two Through the Company’s power grid offerings, the Grid business segment enables electric utilities, industrial facilities, and renewable energy project developers to connect, transmit and distribute power through our transmission planning services, power electronics, and superconductor-based systems. The sales process is enabled by transmission planning services that allow it to identify power grid congestion, poor power quality and other risks, which helps the Company determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems, and transmission and distribution cable systems. The Company also sells ship protection products to the U.S. Navy through its Grid business segment. Through the Company’s wind power offerings, the Wind business segment enables manufacturers to field highly competitive wind turbines through our advanced power electronics and control system products, engineered designs, and support services. The Company supplies advanced power electronics and control systems, licenses its highly engineered wind turbine designs, and provides extensive customer support services to wind turbine manufacturers. The Company’s design portfolio includes a broad range of drive trains and power ratings of 2 The operating two Fiscal Years Ended March 31, 2019 2018 Revenues: Grid $ 34,290 $ 34,109 Wind 21,917 14,294 Total $ 56,207 $ 48,403 Fiscal Years Ended March 31, 2019 2018 Operating income (loss): Grid $ (10,600 ) $ (18,963 ) Wind 48,103 (8,904 ) Unallocated corporate expenses (3,480 ) (4,290 ) Total $ 34,023 $ (32,157 ) Total assets for the two March 31, 2019 March 31, 2018 March 31, 2019 March 31, 2018 Grid $ 31,075 $ 37,012 Wind 8,167 16,790 Corporate assets 80,088 34,373 Total $ 119,330 $ 88,175 The accounting policies of the business segments are the same as those for the consolidated Company. The Company’s business segments have been determined in accordance with the Company’s internal management structure, which is organized based on operating activities. The Company evaluates performance based upon several factors, of which the primary financial measures are segment revenues and segment operating income (loss). The disaggregated financial results of the segments reflect allocation of certain functional expense categories consistent with the basis and manner in which Company management internally disaggregates financial information for the purpose of assisting in making internal operating decisions. In addition, certain corporate expenses which the Company does not two Unallocated corporate expenses primarily consist of stock-based compensation expense of $3.0 $2.7 March 31, 2019 2018, $0.5 $1.5 March 31, 2019 2018, $0.1 March 31, 2018. Geographic information about property, plant and equipment associated with particular regions is as follows (in thousands): March 31, 2019 2018 North America $ 8,555 $ 11,933 Europe 345 478 Asia Pacific 72 102 Total $ 8,972 $ 12,513

Note 19 - Recent Accounting Pro

Note 19 - Recent Accounting Pronouncements	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	19. In May 2014, 2014 09, Revenue from Contracts with Customers (Topic 606 2014 09 December 15, 2017. As of April 1, 2018, 2014 09 April 1, 2018. not no not not April 1, 2018. not not In January 2016, 2016 01, Financial Instruments-Overall (Subtopic 825 10 2016 01 December 15, 2017, 2016 01 April 1, 2018 no In February 2016, 2016 02, Leases (Topic 842 840, Leases 12 December 15, 2018, • In July 2018, 2018 10, Codification improvements to Topic 842, 2018 10 2016 02. • In July 2018, 2018 11, Topic 842, 2018 11 not The Company has evaluated the provisions of ASU 2016 02 842 12 three not may 2016 02. ASU 2016 02 April 1, 2019, April 1, 2019. 842, $3.0 $5.0 een $3.0 $5.0 In June 2016, 2016 13, Financial Instruments-Credit Losses (Topic 326 2016 13 December 15, 2019, 2016 13 may In 2016, two 230 December 15, 2017, • In August 2016, 2016 15, Statement of Cash Flows (Topic 230 2016 15 • In November 2016, 2016 18, Statement of Cash Flows (Topic 230 2016 18 The Company adopted ASU 2016 15 2016 18 April 1, 2018 2016 18 In October 2016, 2016 16, Income Taxes (Topic 740 2016 16 December 15, 2017, 2016 16 April 1, 2018 no In February 2017, 2017 05, Other Income - Gains and Losses from the Derecognition of Non-financial Assets (Subtopic 610 20 2017 05 610 20, Other Income-Gains and Losses from the Derecognition of Non-financial Assets 610 20, May 2014 No. 2014 09, Revenue from Contracts with Customers 606 2017 05 April 1, 2018 $0.1 64 March 28, 2018. In May 2017, 2017 09, Compensation - Stock Compensation (Subtopic 718 2017 09 1 2 718, December 15, 2017, 2017 09 April 1, 2018 no In July 2017, 2017 11, Earnings per Share (Topic 260 Distinguishing Liabilities from Equity (Topic 480 815 2017 11 no e. The ASU is effective for annual reporting periods beginning after December 15, 2018, 2017 11 not 480. In August 2017, 2017 12, Derivatives and Hedging (Topic 815 . The amendments in ASU 2017 12 December 15, 2018, 2017 12 may In June 2018, 2018 07, Compensation - Stock Compensation (Topic 718 2018 07 December 15, 2018, 2018 07 April 1, 2018 no In August 2018, 2018 13, Fair Value Measurement (Topic 820 2018 13 December 15, 2019, 2018 13 may

Note 20 - Subsequent Events

Note 20 - Subsequent Events	12 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Subsequent Events [Text Block]	20. The Company has performed an evaluation of subsequent events through the time of filing this Annual Report on Form 10 no

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Basis of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions are eliminated. Certain reclassifications of prior years’ amounts have been made to conform to the current year presentation. These reclassifications had no
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company bases its estimates on historical experience and various other factors believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not may may
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash Equivalents Cash equivalents consist of highly liquid instruments with maturities of three 1
Receivable [Policy Text Block]	Accounts Receivable Accounts receivable consist of amounts owed by commercial companies and government agencies. Accounts receivable are stated net of allowances for doubtful accounts. The Company’s accounts receivable relate principally to a limited number of customers. As of March 31, 2019, 21% 3, 16% no 10% March 31, 2018, 32% 17% no 10% may may may
Inventory, Policy [Policy Text Block]	Inventory Inventories include material, direct labor and related manufacturing overhead, and are stated at the lower of cost, determined on a first first first first Program costs may At each balance sheet date, the Company evaluates its ending inventories for excess quantities and obsolescence. Inventories that management considers excess or obsolete are reserved. Management considers forecasted demand in relation to the inventory on hand, competitiveness of product offerings, market conditions and product life cycles when determining excess and obsolescence and net realizable value adjustments. Once inventory is written down and a new cost basis is established, it is not For the fiscal years ended March 31, 2019 2018, $0.9 $0.4
Property, Plant and Equipment, Policy [Policy Text Block]	Property, Plant and Equipment Property, plant and equipment are carried at cost less accumulated depreciation and amortization. The Company accounts for depreciation and amortization using the straight-line method to allocate the cost of property, plant and equipment over their estimated useful lives as follows: Asset Classification Estimated Useful Life in Years Building 40 Process upgrades to the building 10-40 Machinery and equipment 3-10 Furniture and fixtures 3-5 Leasehold improvements Shorter of the estimated useful life or the remaining lease term Expenditures for maintenance and repairs are expensed as incurred. Upon retirement or other disposition of assets, the costs and related accumulated depreciation are eliminated from the accounts and the resulting gain or loss is reflected in operating expenses.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Valuation of Long-Lived Assets The Company periodically evaluates its long-lived assets, consisting principally of fixed assets and amortizable intangible assets, for potential impairment. In accordance with the applicable accounting guidance for the treatment of long-lived assets, the Company reviews the carrying value of its long-lived assets or asset group that is held and used, including intangible assets subject to amortization, for impairment whenever events and circumstances indicate that the carrying value of the assets may not may not There were no March 31, 2019 2018.
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill Goodwill represents the excess of cost over net assets of acquired businesses that are consolidated. The Company performs its annual assessment of goodwill on February 28th may not first not not 4, The Company performed its annual assessment of goodwill on February 28, 2019 no March 31, 2019 no no March 31, 2018
Equity Method Investments [Policy Text Block]	Equity Method Investments The Company uses the equity method of accounting for investments in entities in which it has an ownership interest, but does not The Company periodically tests its investments for potential impairment whenever events and circumstances indicate a loss in the fair value of the investments may no March 31, 2019 2018.
Revenue [Policy Text Block]	Revenue Recognition On April 1, 2018, 606, Revenue from Contracts with Customers not Revenue contracts are defined as an arrangement that creates enforceable rights and obligations of both parties where collection of the contract price is deemed probable. five can occur at the time of delivery, installation or post-installation where applicable. For certain arrangements, such as contracts to perform research and development, prototype development contracts and certain customized product sales, the Company records revenues using the over-time method, measured by the relationship of costs incurred to total estimated contract costs. Over-time revenue recognition accounting is predominantly used on certain turnkey power systems installations for electric utilities and long-term prototype development contracts with the U.S. government. The Company follows this method when any of the three no The Company enters into sales arrangements that may may Performance obligations are separated into more than one 1 2 The Company reviews SSP and the related margins at least annually. The Company’s license agreements provide either for the payment of contractually determined paid-up front license fees or milestone based payments in consideration for the grant of rights to manufacture and or sell products using its patented technologies or know-how. Some of these agreements provide for the release of the licensee from past and future intellectual property infringement claims. When the Company can determine that it has no may no not Existing customers are subject to ongoing credit evaluations based on payment history and other factors. If it is determined that collectability of any portion of the contract value is not not Infrequently, the Company receives requests from customers to hold product being purchased from us for a valid business purpose. The Company recognizes revenues for such arrangements provided the transaction meets, at a minimum, the following criteria: a valid business purpose for the arrangement exists; risk of ownership of the purchased product has been transferred to the buyer; there is a fixed delivery date that is reasonable and consistent with the buyer’s business purpose; the product is ready for shipment; the Company has no no March 31, 2019. March 31, 2018, $3.7 The Company has elected to record taxes collected from customers on a net basis and does not The Company’s contract assets and liabilities primarily relate to the timing differences between cash received from a customer in connection with contractual rights to invoicing and the timing of revenue recognition following completion of performance obligations. The Company's accounts receivable balance is made up entirely of customer contract related balances. See Note 3, 606, Revenue from Contracts with Customers
Standard Product Warranty, Policy [Policy Text Block]	Product Warranty Warranty obligations are incurred in connection with the sale of the Company’s products. The Company generally provides a one three
Research and Development Expense, Policy [Policy Text Block]	Research and Development Costs Research and development costs are expensed as incurred.
Income Tax, Policy [Policy Text Block]	Income Taxes The Company’s provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carry-forwards using expected tax rates in effect in the years during which the differences are expected to reverse. Deferred income taxes are recognized for the tax consequences in future years of differences between the tax bases of assets and liabilities and their financial reporting amounts at each fiscal year end based on enacted tax laws and statutory tax rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce net deferred tax assets to the amount expected to be realized. The Company has provided a valuation allowance against its U.S. and China deferred income tax assets since the Company believes that it is more likely than not not Accounting for income taxes requires a two first not second 50% not 13, On December 22, 2017, 2017 not 34% 21% December 31, 2017 one 13,
Share-based Payment Arrangement [Policy Text Block]	Stock-Based Compensation The Company accounts for stock-based payment transactions using a fair value-based method and recognizes the related expense in the results of operations. Stock-based compensation is estimated at the grant date based on the fair value of the award and is recognized as expense over the requisite service period of the award. The fair value of restricted stock awards is determined by reference to the fair market value of the Company’s common stock on the date of grant. The Company uses the Black-Scholes option pricing model to estimate the fair value of awards with service and performance conditions. For awards with service conditions only, the Company recognizes compensation cost on a straight-line basis over the requisite service/vesting period. For awards with performance conditions, accruals of compensation cost are made based on the probable outcome of the performance conditions. The cumulative effect of changes in the probability outcomes are recorded in the period in which the changes occur. Determining the appropriate fair value model and related assumptions requires judgment, including estimating stock price volatilities of the Company’s common stock and expected terms. The expected volatility rates are estimated based on historical and implied volatilities of the Company’s common stock. The expected term represents the average time that the options that vest are expected to be outstanding based on the vesting provisions and the Company’s historical exercise, cancellation and expiration patterns. The Company estimates pre-vesting forfeitures when recognizing compensation expense based on historical and forward-looking factors. Changes in estimated forfeiture rates and differences between estimated forfeiture rates and actual experience may may The Company's adoption of ASU 2018 07 Compensation - Stock Compensation (Topic 718 April 1, 201 8 also resulted in the acc to be accounted for in the same manner as other share-based payments for employees, with the measurement being based on the fair value at the grant date. The non-employee share based payments will be included within the Company's stock compensation currently reported.
Earnings Per Share, Policy [Policy Text Block]	Computation of Net Income (Loss) per Common Share Basic net income (loss) per share (“EPS”) is computed by dividing net loss by the weighted-average number of common shares outstanding for the period. Diluted EPS is computed by dividing the net loss by the weighted-average number of common shares and dilutive common equivalent shares outstanding during the period, calculated using the treasury stock method. Common equivalent shares include the effect of restricted stock, exercise of stock options and warrants and contingently issuable shares. For the fiscal years ended March 31, 2019 2018, 907,988, 1,157,895, not reconciles March 31, 2019 2018 Fiscal year ended March 31, 2019 2018 Numerator: Net income (loss) $ 26,761 $ (32,776 ) Denominator: Weighted-average shares of common stock outstanding 21,265 19,621 Weighted-average shares subject to repurchase (930 ) (654 ) Shares used in per-share calculation — basic 20,335 18,967 Shares used in per-share calculation — diluted 20,726 18,967 Net income (loss) per share — basic $ 1.32 $ (1.73 ) Net income (loss) per share — diluted $ 1.29 $ (1.73 )
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Translation The functional currency of all the Company’s foreign subsidiaries is the U.S. dollar, except for AMSC Austria, for which the local currency (Euro) is the functional currency, and AMSC China, for which the local currency (Renminbi) is the functional currency. The assets and liabilities of AMSC Austria and AMSC China are translated into U.S. dollars at the exchange rate in effect at the balance sheet date and income and expense items are translated at average rates for the period. Cumulative translation adjustments are excluded from net loss and shown as a separate component of stockholders’ equity. Net foreign currency gains and losses are included in other income (expense), net on the consolidated statement of operations and were $1.6 $2.8 March 31, 2019 2018, no
Risks and Uncertainties [Policy Text Block]	Risks and Uncertainties The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates and would impact future results of operations and cash flows. The Company invests its available cash in high credit, quality financial instruments and invests primarily in investment-grade marketable securities, including, but not Several of the Company’s government contracts are being funded incrementally, and as such, are subject to the future authorization, appropriation, and availability of government funding. The Company has a history of successfully obtaining financing under incrementally-funded contracts with the U.S. government and it expects to continue to obtain additional contract modifications in the year ending March 31, 2020
Commitments and Contingencies, Policy [Policy Text Block]	Contingencies From time to time, the Company may not not not not 15,
Fair Value of Financial Instruments, Policy [Policy Text Block]	Disclosure of Fair Value of Financial Instruments The Company’s financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, warrants to purchase shares of common stock, derivatives, and a senior secured term loan. The carrying amounts of cash and cash equivalents, accounts receivable, short-term debt, accounts payable, and accrued expenses due to their short nature approximate fair value at March 31, 2019 2018. 3 5,

Note 2 - Summary of Significa_2

Note 2 - Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Property Plant and Equipment Useful Life [Table Text Block]	Asset Classification Estimated Useful Life in Years Building 40 Process upgrades to the building 10-40 Machinery and equipment 3-10 Furniture and fixtures 3-5 Leasehold improvements Shorter of the estimated useful life or the remaining lease term
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Fiscal year ended March 31, 2019 2018 Numerator: Net income (loss) $ 26,761 $ (32,776 ) Denominator: Weighted-average shares of common stock outstanding 21,265 19,621 Weighted-average shares subject to repurchase (930 ) (654 ) Shares used in per-share calculation — basic 20,335 18,967 Shares used in per-share calculation — diluted 20,726 18,967 Net income (loss) per share — basic $ 1.32 $ (1.73 ) Net income (loss) per share — diluted $ 1.29 $ (1.73 )

Note 3 - Revenue Recognition (T

Note 3 - Revenue Recognition (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]	March 31, 2018 Opening Adjustment April 1, 2018 Assets: Accounts Receivable $ 7,365 $ (678 ) $ 6,687 Inventory 19,780 (1,599 ) 18,181 Prepaid expenses and other current assets 2,947 2,277 5,224 Notes receivable, long term portion 2,559 105 2,664 Liabilities and Stockholders' Equity: Accounts payable and accrued expenses $ (12,625 ) $ (2,729 ) $ (15,354 ) Deferred revenue (13,483 ) 2,657 (10,826 ) Accumulated deficit $ (988,333 ) $ (33 ) $ (988,366 )
Disaggregation of Revenue [Table Text Block]	Year Ended Product Line: Grid Wind Equipment and systems $ 26,645 $ 19,287 Services and technology development 7,645 2,630 Total $ 34,290 $ 21,917 Region: Americas $ 22,811 $ 112 Asia Pacific 7,267 21,200 EMEA 4,212 605 Total $ 34,290 $ 21,917
Contract with Customer, Asset and Liability [Table Text Block]	Unbilled AR Deferred Program Costs Contract Liabilities Beginning balance as of March 31, 2018 $ 3,016 $ 2,567 $ 21,937 Impact of adoption of ASC 606 — (1,599 ) (2,657 ) Increases for costs incurred to fulfill performance obligations — 1,585 — Increase (decrease) due to customer billings (12,076 ) — 20,540 Decrease due to cost recognition on completed performance obligations — (2,212 ) — Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations 11,324 (9 ) (23,084 ) Other changes and FX impact (51 ) (14 ) (1,215 ) Ending balance as of March 31, 2019 $ 2,213 $ 318 $ 15,521
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Year Ended Reportable March 31, Segment 2019 2018 Inox Wind Limited Wind 34% 27% Vestas Grid 15% <10%

Note 4 - Acquisition and Rela_2

Note 4 - Acquisition and Related Goodwill (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	September 25, 2017 Consideration Cash $ 0.1 Equity (884,890 shares of common stock at $4.02 per share) 3.6 Contingent consideration 0.6 Total Consideration $ 4.3 Recognized amounts of identifiable assets acquired and liabilities assumed Core technology and know-how $ 3.4 Working capital 0.2 Property, plant and equipment 0.0 Total identifiable net assets $ 3.6 Long-term deferred tax liability 1.1 Goodwill recognized $ 1.7

Note 5 - Fair Value Measureme_2

Note 5 - Fair Value Measurements (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Total Carrying Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2019: Assets: Cash equivalents $ 41,839 $ 41,839 $ — $ — Derivative liabilities: Warrants $ 4,942 $ — $ — $ 4,942 Total Carrying Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2018: Assets: Cash equivalents $ 32,589 $ 32,589 $ — $ — Derivative liabilities: Warrants $ 1,217 $ — $ — $ 1,217
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]	Warrants April 1, 2018 $ 1,217 Mark to market adjustment 3,725 March 31, 2019 $ 4,942 Warrants April 1, 2017 $ 1,923 Mark to market adjustment (706 ) March 31, 2018 $ 1,217

Note 6 - Accounts Receivable (T

Note 6 - Accounts Receivable (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Accounts Receivable [Table Text Block]	March 31, 2019 March 31, 2018 Accounts receivable (billed) $ 5,642 $ 4,403 Accounts receivable (unbilled) 2,213 3016 Less: Allowance for doubtful accounts — (54 ) Accounts receivable, net $ 7,855 $ 7,365

Note 7 - Inventory (Tables)

Note 7 - Inventory (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Inventory, Current [Table Text Block]	March 31, 2019 March 31, 2018 Raw materials $ 5,474 $ 7,526 Work-in-process 1,922 920 Finished goods 4,405 8,767 Deferred program costs 318 2,567 Net inventory $ 12,119 $ 19,780

Note 8 - Note Receivable (Table

Note 8 - Note Receivable (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Notes Receivable [Table Text Block]	March 31, 2019 March 31, 2018 Current assets Note receivable, current $ 3,000 $ 3,000 Note receivable discount (112 ) — Total current note receivable $ 2,888 $ 3,000 Long term assets Note receivable, long term $ — $ 3,000 Note receivable discount — (336 ) Deferred gain on sale — (105 ) Total long term note receivable $ — $ 2,559

Note 9 - Property, Plant and _2

Note 9 - Property, Plant and Equipment (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Property, Plant and Equipment [Table Text Block]	March 31, 2019 March 31, 2018 Construction in progress - equipment $ 603 $ 654 Equipment and software 45,705 72,760 Furniture and fixtures 1,269 1,878 Leasehold improvements 1,955 1,426 Property, plant and equipment, gross 49,532 76,718 Less accumulated depreciation (40,560 ) (64,205 ) Property, plant and equipment, net $ 8,972 $ 12,513

Note 10 - Intangible Assets (Ta

Note 10 - Intangible Assets (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	2019 2018 Gross Amount Accumulated Amortization Net Book Value Gross Amount Accumulated Amortization Net Book Value Estimated Useful Life Core technology and know-how $ 4,970 $ (2,080 ) $ 2,890 $ 8,703 $ (5,473 ) $ 3,230 5-10 March 31, 2019 2018 Intangible assets by geography: U.S. $ 2,890 $ 3,230 Total $ 2,890 $ 3,230 March 31, 2019 2018 Intangible assets by business segments: Grid $ 2,890 $ 3,230 Total $ 2,890 $ 3,230
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Fiscal years ending March 31, Total 2020 340 2021 340 2022 340 2023 340 2024 340 Thereafter 1,190 Total $ 2,890

Note 11 - Accounts Payable an_2

Note 11 - Accounts Payable and Accrued Expenses (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]	March 31, 2019 March 31, 2018 Accounts payable $ 2,939 $ 3,096 Accrued inventories in-transit 244 1,207 Accrued other miscellaneous expenses 1,759 2,412 Advanced deposits 631 — Accrued compensation 5,404 3,605 Income taxes payable 3,363 536 Accrued warranty 1,545 1,769 Total $ 15,885 $ 12,625
Schedule of Product Warranty Liability [Table Text Block]	Fiscal Years Ended March 31, 2019 2018 Balance at beginning of period $ 1,769 $ 2,344 Change in accruals for warranties during the period 727 890 Settlements during the period (951 ) (1,465 ) Balance at end of period $ 1,545 $ 1,769

Note 12 - Warrants and Deriva_2

Note 12 - Warrants and Derivative Liabilities (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Fair Value Option, Disclosures [Table Text Block]	March 31, December 31, September 30, June 30, Fiscal Year 2018 2019 2018 2018 2018 Risk-free interest rate 2.43% 2.61% 2.62% 2.40% Expected annual dividend yield — — — — Expected volatility 75.61% 70.29% 63.66% 67.40% Term (years) 0.62 0.87 1.12 1.37 Fair value $4.6 million $3.6 million $1.3 million $1.6 million March 31, December 31, September 30, June 30, Fiscal Year 2017 2018 2017 2017 2017 Risk-free interest rate 2.20% 1.87% 1.49% 1.44% Expected annual dividend yield — — — — Expected volatility 65.86% 65.86% 65.64% 67.21% Term (years) 1.62 1.87 2.12 2.37 Fair value $1.1 million $0.4 million $0.8 million $0.9 million
Summary of Assumptions to Contingent Consideration [Table Text Block]	Fiscal Year 2017 September 30, 2017 September 25, 2017 Risk-free interest rate 1.09% 1.09% Expected annual dividend yield — — Expected volatility 66.54% 65.71% Term (years) 0.31 0.32 Fair value $0.4 million $0.6 million

Note 13 - Income Taxes (Tables)

Note 13 - Income Taxes (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	Fiscal years ended March 31, 2019 2018 Income/(Loss) before income tax expense: U.S. $ (24,289 ) $ (100,341 ) Foreign 57,430 67,404 Total $ 33,141 $ (32,937 )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Fiscal years ended March 31, 2019 2018 Current Federal $ 1,246 $ 374 Foreign 4,399 592 Total current 5,645 966 Deferred Federal 1,588 (1,086 ) Foreign (853 ) (41 ) Total deferred 735 (1,127 ) Income tax (benefit) expense $ 6,380 $ (161 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Fiscal years ended March 31, 2019 2018 Statutory federal income tax rate (21 )% (31 )% Federal rate change — 351 Deemed dividend and dividends paid — 7 Foreign income tax rate differential 4 (62 ) Reversal of uncertain tax benefits — (3 ) True-up of NOLs (60 ) 11 GILTI 37 — Other 3 (5 ) Valuation allowance 92 (268 ) Effective income tax rate -19 % — %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	March 31, 2019 March 31, 2018 Deferred tax assets: Net operating loss carryforwards $ 181,657 $ 210,194 Research and development and other tax credit carryforwards 13,046 12,828 Accruals and reserves 14,781 22,406 Fixed assets and intangible assets 1,553 1,568 Other 2,785 12,996 Gross deferred tax assets 213,822 259,992 Valuation allowance (196,340 ) (227,686 ) Total deferred tax assets 17,482 32,306 Deferred tax liabilities: Intercompany Debt (16,028 ) (29,130 ) Other (1,794 ) (2,744 ) Total deferred tax liabilities (17,822 ) (31,874 ) Net deferred tax asset $ (340 ) $ 432

Note 14 - Stockholders' Equity

Note 14 - Stockholders' Equity (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Share-based Payment Arrangement, Cost by Plan [Table Text Block]	Fiscal years ended March 31, 2019 2018 Stock options $ 221 $ 227 Restricted stock and stock awards 2,781 2,434 Employee stock purchase plan 28 31 Total stock-based compensation expense $ 3,030 $ 2,692
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Fiscal years ended March 31, 2019 2018 Cost of revenues $ 116 $ 137 Research and development 365 373 Selling, general and administrative 2,549 2,182 Total $ 3,030 $ 2,692
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Options / Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term Aggregate Intrinsic Value (thousands) Outstanding at March 31, 2018 280,891 $ 69.51 Canceled/forfeited (116,626 ) 31.76 Outstanding at March 31, 2019 164,265 $ 96.30 3.1 $ — Exercisable at March 31, 2019 164,265 $ 96.30 3.0 $ — Fully vested and expected to vest at March 31, 2019 164,265 $ 96.30 3.1 $ —
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]	Shares Weighted Average Grant Date Fair Value Intrinsic Aggregate Value (thousands) Outstanding at March 31, 2018 896,486 $ 4.65 Granted 532,053 6.9 Vested (405,802 ) 6.1 Forfeited (68,789 ) 5.04 Outstanding at March 31, 2019 953,948 $ 5.26 $ 12,268

Note 15 - Commitments and Con_2

Note 15 - Commitments and Contingencies (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Fiscal years ended March 31, Total 2020 $ 1,121 2021 894 2022 648 2023 416 2024 65 Total $ 3,144
Schedule of Rent Expense [Table Text Block]	Fiscal years ended March 31, 2019 2018 Rent expense $ 1,286 $ 1,510

Note 17 - Restructuring (Tables

Note 17 - Restructuring (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Restructuring and Related Costs [Table Text Block]	Severance pay and benefits Facility exit and Relocation costs Total Accrued restructuring balance at April 1, 2018 $ 262 $ 173 $ 435 Charges to operations — 450 450 Cash payments (262 ) (623 ) (885 ) Accrued restructuring balance at March 31, 2019 $ — $ — $ — Accrued restructuring balance at April 1, 2017 $ — $ — $ — Charges to operations 1,325 202 1,527 Cash payments (1,063 ) (29 ) (1,092 ) Accrued restructuring balance at March 31, 2018 $ 262 $ 173 $ 435

Note 18 - Business Segments (Ta

Note 18 - Business Segments (Tables)	12 Months Ended
	Mar. 31, 2019
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Fiscal Years Ended March 31, 2019 2018 Revenues: Grid $ 34,290 $ 34,109 Wind 21,917 14,294 Total $ 56,207 $ 48,403 Fiscal Years Ended March 31, 2019 2018 Operating income (loss): Grid $ (10,600 ) $ (18,963 ) Wind 48,103 (8,904 ) Unallocated corporate expenses (3,480 ) (4,290 ) Total $ 34,023 $ (32,157 )
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	March 31, 2019 March 31, 2018 Grid $ 31,075 $ 37,012 Wind 8,167 16,790 Corporate assets 80,088 34,373 Total $ 119,330 $ 88,175
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	March 31, 2019 2018 North America $ 8,555 $ 11,933 Europe 345 478 Asia Pacific 72 102 Total $ 8,972 $ 12,513

Note 1 - Nature of the Busine_2

Note 1 - Nature of the Business and Operations and Liquidity (Details Textual) $ in Thousands	Mar. 28, 2019USD ($)	Jul. 04, 2018USD ($)	Jul. 03, 2018USD ($)	Feb. 01, 2018USD ($)	Dec. 31, 2015USD ($)	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)	Dec. 27, 2018USD ($)	Apr. 01, 2018USD ($)	Mar. 28, 2018USD ($)	Mar. 31, 2017USD ($)
Net Income (Loss) Attributable to Parent, Total						$ 26,761	$ (32,776)
Retained Earnings (Accumulated Deficit), Ending Balance						(961,539)	(988,333)		$ (988,366)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance						78,198	34,249				$ 27,744
Net Cash Provided by (Used in) Operating Activities, Total						42,714	(24,827)
Gain (Loss) Related to Litigation Settlement, Total						52,698
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total							$ 2,559		$ 2,664
Sinovel [Member]
Litigation Settlement, Amount Awarded from Other Party			$ 57,500
Litigation Settlement, Number of Installments			2
Proceeds from Legal Settlements		$ 32,500
Litigation Receivable								$ 25,000
Gain (Loss) Related to Litigation Settlement, Total						$ 52,700
64 Jackson, LLC [Member]
Purchase and Sale Agreement, Total Consideration				$ 23,000
Purchase and Sale Agreement, Proceeds from Sale of Property, Plant and Equipment				17,000
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total				$ 6,000
Purchase and Sale Agreement, Proceeds from Sale of Property, Plant and Equipment, Net										$ 16,900
Notes Receivable, Stated Interest Rate				1.96%						1.96%
Proceeds from Collection of Notes Receivable	$ 3,000
Inox Wind Limited [Member]
Supply Agreement, Aggregate Value					$ 210,000
Supply Commitment, Extension Period					3 years

Note 2 - Summary of Significa_3

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Inventory Valuation Reserves, Ending Balance	$ 900	$ 400
Asset Impairment Charges, Total	0	0
Goodwill, Impairment Loss	0	0
Equity Method Investments	0	0
Revenues, Bill and Hold Transactions	$ 0	$ 3,700
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	907,988	1,157,895
Foreign Currency Transaction Gain (Loss), before Tax, Total	$ 1,600	$ 2,800
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Vestas [Member]
Concentration Risk, Percentage	21.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | RES System 3 LLC [Member]
Concentration Risk, Percentage	16.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Inox [Member]
Concentration Risk, Percentage		32.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Fuji Bridex Pte Ltd [Member]
Concentration Risk, Percentage		17.00%

Note 2 - Summary of Significa_4

Note 2 - Summary of Significant Accounting Policies - Property Plant and Equipment Useful Life (Details)	12 Months Ended
	Mar. 31, 2019
Building [Member]
Property, plant and equipment, useful life (Year)	40 years
Building Improvements [Member] | Minimum [Member]
Property, plant and equipment, useful life (Year)	10 years
Building Improvements [Member] | Maximum [Member]
Property, plant and equipment, useful life (Year)	40 years
Machinery and Equipment [Member] | Minimum [Member]
Property, plant and equipment, useful life (Year)	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, plant and equipment, useful life (Year)	10 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, plant and equipment, useful life (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, plant and equipment, useful life (Year)	5 years
Leasehold Improvements [Member]
Property, plant and equipment, estimated useful life	Shorter of the estimated useful life or the remaining lease term

Note 2 - Summary of Significa_5

Note 2 - Summary of Significant Accounting Policies - Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income (loss)	$ 26,761	$ (32,776)
Weighted-average shares of common stock outstanding (in shares)	21,265	19,621
Weighted-average shares subject to repurchase (in shares)	(930)	(654)
Shares used in per-share calculation — basic (in shares)	20,335	18,967
Shares used in per-share calculation — diluted (in shares)	20,726	18,967
Net income (loss) per share — basic (in dollars per share)	$ 1.32	$ (1.73)
Net income (loss) per share — diluted (in dollars per share)	$ 1.29	$ (1.73)

Note 3 - Revenue Recognition 1

Note 3 - Revenue Recognition 1 (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Apr. 01, 2018
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 33
Revenue, Performance Obligation Satisfied, Revenue Recognized, Percentage	85.00%
Geographic Concentration Risk [Member] | Revenue Benchmark [Member] | Non-US [Member]
Concentration Risk, Percentage	74.00%	64.00%
Minimum [Member]
Warranty Period	1 year
Contract with Customer, Payment Term	30 days
Maximum [Member]
Warranty Period	2 years
Extended Service Warranty, Term	4 years
Contract with Customer, Payment Term	60 days
Accounting Standards Update 2014-09 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ (100)
Accounting Standards Update 2017-05 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ 100

Note 3 - Revenue Recognition 2

Note 3 - Revenue Recognition 2 (Details Textual) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01 $ in Millions	Mar. 31, 2019USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Amount	$ 11.6
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year 30 days
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	5 years

Note 3 - Revenue Recognition -

Note 3 - Revenue Recognition - Cumulative Effect of ASU 2014-09 (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2018
Accounts Receivable	$ 7,855	$ 6,687	$ 7,365
Inventory	12,119	18,181	19,780
Prepaid expenses and other current assets	3,053	5,224	2,947
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total		2,664	2,559
Accounts payable and accrued expenses	(15,885)	(15,354)	(12,625)
Deferred revenue	(7,557)	(10,826)	(13,483)
Retained Earnings (Accumulated Deficit), Ending Balance	$ (961,539)	(988,366)	$ (988,333)
Accounting Standards Update 2014-09 [Member]
Accounts Receivable		(678)
Inventory		(1,599)
Prepaid expenses and other current assets		2,277
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total		105
Accounts payable and accrued expenses		(2,729)
Deferred revenue		2,657
Retained Earnings (Accumulated Deficit), Ending Balance		$ (33)

Note 3 - Revenue Recognition _2

Note 3 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues	$ 56,207	$ 48,403
Grid [Member]
Revenues	34,290	34,109
Grid [Member] | Americas [Member]
Revenues	22,811
Grid [Member] | Asia Pacific [Member]
Revenues	7,267
Grid [Member] | EMEA [Member]
Revenues	4,212
Wind [Member]
Revenues	21,917	$ 14,294
Wind [Member] | Americas [Member]
Revenues	112
Wind [Member] | Asia Pacific [Member]
Revenues	21,200
Wind [Member] | EMEA [Member]
Revenues	605
Equipment and Systems [Member] | Grid [Member]
Revenues	26,645
Equipment and Systems [Member] | Wind [Member]
Revenues	19,287
Services and Technology Development [Member] | Grid [Member]
Revenues	7,645
Services and Technology Development [Member] | Wind [Member]
Revenues	$ 2,630

Note 3 - Revenue Recognition _3

Note 3 - Revenue Recognition - Contract Assets and Liabilities (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2019USD ($)
Unbilled AR, beginning balance	$ 3,016
Unbilled AR, impact of adoption of ASC 606	0
Unbilled AR, increase (decrease) due to customer billings	(12,076)
Unbilled AR, increase (decrease) due to recognition of revenue based on transfer of control of performance obligations	11,324
Unbilled AR, other changes and FX impact	(51)
Unbilled AR, ending balance	2,213
Deferred Program Costs, beginning balance	2,567
Deferred Program Costs, impact of adoption of ASC 606	(1,599)
Deferred Program Costs, increases for costs incurred to fulfill performance obligations	1,585
Deferred Program Costs, decrease due to cost recognition on completed performance obligations	(2,212)
Deferred Program Costs, increase (decrease) due to recognition of revenue based on transfer of control of performance obligations	(9)
Deferred Program Costs, other changes and FX impact	(14)
Deferred Program Costs, ending balance	318
Contract Liabilities, beginning balance	21,937
Contract Liabilities, impact of adoption of ASC 606	(2,657)
Increase (decrease) due to customer billings	20,540
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations	(23,084)
Other changes and FX impact	(1,215)
Contract Liabilities, ending balance	$ 15,521

Note 3 - Revenue Recognition _4

Note 3 - Revenue Recognition - Revenues By Major Customers (Details) - Customer Concentration Risk [Member] - Revenue Benchmark [Member]	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Wind [Member] | Inox Wind Limited [Member]
Concentration risk percentage	34.00%	27.00%
Grid [Member] | Vestas WTG Mexico [Member]
Concentration risk percentage	15.00%	10.00%

Note 4 - Acquisition and Rela_3

Note 4 - Acquisition and Related Goodwill (Details Textual) - USD ($) $ in Thousands	Sep. 25, 2017	Mar. 31, 2019	Mar. 31, 2018
Goodwill, Ending Balance		$ 1,719	$ 1,719
Goodwill, Impairment Loss		$ 0	$ 0
Infinia Technology Corporation (ITC) [Member]
Business Combination, Consideration Transferred, Excluding Contingent Consideration	$ 3,800
Goodwill, Ending Balance	$ 1,700

Note 4 - Acquisition and Rela_4

Note 4 - Acquisition and Related Goodwill - Assets Acquiredand Liabilities Assumed Recognized (Details) - USD ($)	Sep. 25, 2017	Mar. 31, 2019	Mar. 31, 2018
Issuance of common stock in connection with the purchase of Infinia Technology Corporation			$ 3,498,000
Goodwill recognized		$ 1,719,000	$ 1,719,000
Infinia Technology Corporation (ITC) [Member]
Cash	$ 100,000
Issuance of common stock in connection with the purchase of Infinia Technology Corporation	3,600,000
Contingent consideration	600,000
Total Consideration	4,300,000
Core technology and know-how	3,400,000
Working capital	200,000
Property, plant and equipment	0
Total identifiable net assets	3,600,000
Long-term deferred tax liability	1,100,000
Goodwill recognized	$ 1,700,000

Note 4 - Acquisition and Rela_5

Note 4 - Acquisition and Related Goodwill - Assets Acquiredand Liabilities Assumed Recognized (Details) (Parentheticals) - Infinia Technology Corporation (ITC) [Member]	Sep. 25, 2017$ / sharesshares
Equity, shares (in shares) | shares	884,890
Equity, price per share (in dollars per share) | $ / shares	$ 4.02

Note 5 - Fair Value Measureme_3

Note 5 - Fair Value Measurements - Assets and Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Derivative liabilities	$ 4,942	$ 1,217
Fair Value, Recurring [Member] | Warrant [Member]
Derivative liabilities	4,942	1,217	$ 1,923
Reported Value Measurement [Member] | Fair Value, Recurring [Member]
Cash equivalents	41,839	32,589
Reported Value Measurement [Member] | Fair Value, Recurring [Member] | Warrant [Member]
Derivative liabilities	4,942	1,217
Reported Value Measurement [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents	41,839	32,589
Derivative liabilities	0	0
Reported Value Measurement [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Cash equivalents	0	0
Derivative liabilities	0	0
Reported Value Measurement [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Cash equivalents	0	0
Derivative liabilities	$ 4,942	$ 1,217

Note 5 - Fair Value Measureme_4

Note 5 - Fair Value Measurements - Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Beginning balance	$ 1,217
Ending balance	4,942	$ 1,217
Fair Value, Recurring [Member] | Warrant [Member]
Beginning balance	1,217	1,923
Mark to market adjustment	3,725	(706)
Ending balance	$ 4,942	$ 1,217

Note 6 - Accounts Receivable -

Note 6 - Accounts Receivable - Summary of Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2018
Accounts receivable (billed)	$ 5,642		$ 4,403
Accounts receivable (unbilled)	2,213		3,016
Less: Allowance for doubtful accounts			(54)
Accounts receivable, net	$ 7,855	$ 6,687	$ 7,365

Note 7 - Inventory (Details Tex

Note 7 - Inventory (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Inventory Write-down	$ 878	$ 434

Note 7 - Inventory - Summary of

Note 7 - Inventory - Summary of Net Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2018
Raw materials	$ 5,474		$ 7,526
Work-in-process	1,922		920
Finished goods	4,405		8,767
Deferred program costs	318		2,567
Net inventory	$ 12,119	$ 18,181	$ 19,780

Note 8 - Note Receivable (Detai

Note 8 - Note Receivable (Details Textual) $ in Thousands	Feb. 01, 2018USD ($)	Mar. 31, 2019USD ($)	Sep. 30, 2018USD ($)	Apr. 01, 2018USD ($)	Mar. 31, 2018USD ($)	Mar. 28, 2018
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total				$ 2,664	$ 2,559
Notes and Loans Receivable, Noncurrent Portion of Unamortized Debt Discount					336
Deferred Gain on Sale of Property					$ 105
64 Jackson, LLC [Member]
Purchase and Sale Agreement, Total Consideration	$ 23,000
Security Deposit	1,000
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total	$ 6,000
Notes and Loans Receivable, Number of Installments	2
Notes and Loans Receivable, Installment Amount	$ 3,000
Notes Receivable, Stated Interest Rate	1.96%					1.96%
Notes Receivable, Fair Value Disclosure	$ 5,700
Note Receivable Discount Rate	6.00%
Notes and Loans Receivable, Noncurrent Portion of Unamortized Debt Discount	$ 300	$ 100
Deferred Gain on Sale of Property			$ 100

Note 8 - Note Receivable - Summ

Note 8 - Note Receivable - Summary of Note Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2018
Note receivable, current	$ 3,000		$ 3,000
Note receivable discount	(112)
Total current note receivable	2,888		3,000
Note receivable, long term			3,000
Note receivable discount			(336)
Deferred gain on sale			(105)
Total long term note receivable		$ 2,664	$ 2,559

Note 9 - Property, Plant and _3

Note 9 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Depreciation, Depletion and Amortization, Total	$ 4.3	$ 11
Change in Accounting Method Accounted for as Change in Estimate [Member]
Depreciation, Depletion and Amortization, Total		$ 4.9

Note 9 - Property, Plant and _4

Note 9 - Property, Plant and Equipment - Cost and Accumulated Depreciation of Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Property, plant and equipment, gross	$ 49,532	$ 76,718
Less accumulated depreciation	(40,560)	(64,205)
Property, plant and equipment, net	8,972	12,513
Construction in Progress [Member]
Property, plant and equipment, gross	603	654
Equipment and Software [Member]
Property, plant and equipment, gross	45,705	72,760
Furniture and Fixtures [Member]
Property, plant and equipment, gross	1,269	1,878
Leasehold Improvements [Member]
Property, plant and equipment, gross	$ 1,955	$ 1,426

Note 10 - Intangible Assets (De

Note 10 - Intangible Assets (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Amortization of Intangible Assets, Total	$ 0.3	$ 0.5

Note 10 - Intangible Assets - I

Note 10 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net Book Value	$ 2,890	$ 3,230
UNITED STATES
Net Book Value	2,890	3,230
Core Technology and Know-how [Member]
Gross Amount	4,970	8,703
Accumulated Amortization	(2,080)	(5,473)
Net Book Value	$ 2,890	$ 3,230
Core Technology and Know-how [Member] | Minimum [Member]
Estimated Useful Life (Year)	5 years
Core Technology and Know-how [Member] | Maximum [Member]
Estimated Useful Life (Year)	10 years

Note 10 - Intangible Assets - E

Note 10 - Intangible Assets - Expected Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
2020	$ 340
2021	340
2022	340
2023	340
2024	340
Thereafter	1,190
Total	$ 2,890	$ 3,230

Note 11 - Accounts Payable an_3

Note 11 - Accounts Payable and Accrued Expenses (Details Textual)	12 Months Ended
	Mar. 31, 2019
Minimum [Member]
Extended Warranty Trigger Period	1 year
Maximum [Member]
Extended Warranty Trigger Period	3 years

Note 11 - Accounts Payable an_4

Note 11 - Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2018	Mar. 31, 2017
Accounts payable	$ 2,939		$ 3,096
Accrued inventories in-transit	244		1,207
Accrued other miscellaneous expenses	1,759		2,412
Advanced deposits	631
Accrued compensation	5,404		3,605
Income taxes payable	3,363		536
Accrued warranty	1,545		1,769	$ 2,344
Total	$ 15,885	$ 15,354	$ 12,625

Note 11 - Accounts Payable an_5

Note 11 - Accounts Payable and Accrued Expenses - Product Warranty Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Balance at beginning of period	$ 1,769	$ 2,344
Change in accruals for warranties during the period	727	890
Settlements during the period	(951)	(1,465)
Balance at end of period	$ 1,545	$ 1,769

Note 12 - Warrants and Deriva_3

Note 12 - Warrants and Derivative Liabilities (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Apr. 17, 2019	Jan. 05, 2018	Dec. 19, 2014	Nov. 13, 2014	Mar. 31, 2019	Mar. 31, 2018
Gain (Loss) in Change of Fair Value of Derivative Instruments and Warrants					$ (3,725)	$ 706
Payment for Contingent Consideration Liability, Operating Activities		$ 700
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability						71
November 2014 Warrant [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 7.81
Investment Warrants Expiration Date				Nov. 13, 2019
Common Unit, Issued				909,090
Common Shares Per Unit				1
Class of Warrant or Right, Number of Warrants to Purchase One Share of Stock				0.9
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				818,181
Gain (Loss) in Change of Fair Value of Derivative Instruments and Warrants					$ (3,500)	700
Hercules Technology Growth Capital [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, Warrant Exercised	22,821
Secured Debt [Member] | Hercules Technology Growth Capital [Member] | First Warrant [Member]
Purchase Commitment, Issuance of Warrants, Shares of Common Stock					13,927
Secured Debt [Member] | Hercules Technology Growth Capital [Member] | Second Warrant [Member]
Purchase Commitment, Issuance of Warrants, Shares of Common Stock					25,641
Secured Debt [Member] | Hercules Technology Growth Capital [Member] | Hercules Warrants [Member]
Purchase Commitment, Issuance of Warrants, Shares of Common Stock			58,823
Class of Warrant or Right, Exercise Price of Warrants or Rights					$ 7.85
Investment Warrants Expiration Date					Jun. 30, 2020
Derivative, Fair Value, Net, Total					$ 400	$ 100

Note 12 - Warrants and Deriva_4

Note 12 - Warrants and Derivative Liabilities - Summary of the Key Assumptions Used to Calculate Fair Value of Warrants (Details) $ in Millions	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 30, 2017USD ($)	Jun. 30, 2017USD ($)
Fair value	$ 4.6	$ 3.6	$ 1.3	$ 1.6	$ 1.1	$ 0.4	$ 0.8	$ 0.9
Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	0.0243	0.0261	0.0262	0.024	0.022	0.0187	0.0149	0.0144
Measurement Input, Expected Dividend Rate [Member]
Warrants and Rights Outstanding, Measurement Input
Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	0.7561	0.7029	0.6366	0.674	0.6586	0.6586	0.6564	0.6721
Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input	0.62	0.87	1.12	1.37	1.62	1.87	2.12	2.37

Note 12 - Warrants and Deriva_5

Note 12 - Warrants and Derivative Liabilities - Contingent Consideration (Details) $ in Millions	Sep. 30, 2017USD ($)	Sep. 25, 2017USD ($)
Fair value	$ 0.4	$ 0.6
Measurement Input, Risk Free Interest Rate [Member]
Contingent consideration, measurement input	0.0109	0.0109
Measurement Input, Expected Dividend Rate [Member]
Contingent consideration, measurement input
Measurement Input, Price Volatility [Member]
Contingent consideration, measurement input	0.6654	0.6571
Measurement Input, Expected Term [Member]
Contingent consideration, measurement input	0.31	0.32

Note 13 - Income Taxes (Details

Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Deferred Tax Assets, Valuation Allowance, Total	$ 196,340	$ 227,686
Operating Loss Carryforwards Indefinite	30,000
Undistributed Earnings of Foreign Subsidiaries	30,000
Deferred Tax Liabilities, Undistributed Foreign Earnings	1,700
Unrecognized Tax Benefits, Ending Balance	0	$ 0
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	10,100
Other Tax Credit Carryforwards [Member]
Tax Credit Carryforward, Amount	3,500
Power Quality Systems, Inc [Member]
Operating Loss Carryforwards, Total	3,700
Infinia Technology Corporation (ITC) [Member]
Operating Loss Carryforwards, Total	300
Domestic Tax Authority [Member]
Operating Loss Carryforwards, Total	776,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Total	198,000
Foreign Tax Authority [Member] | State Administration of Taxation, China [Member]
Operating Loss Carryforwards, Total	$ 21,800

Note 13 - Income Taxes - Income

Note 13 - Income Taxes - Income (Loss) Before Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
U.S.	$ (24,289)	$ (100,341)
Foreign	57,430	67,404
Total	$ 33,141	$ (32,937)

Note 13 - Income Taxes - Compon

Note 13 - Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Federal	$ 1,246	$ 374
Foreign	4,399	592
Total current	5,645	966
Federal	1,588	(1,086)
Foreign	(853)	(41)
Total deferred	735	(1,127)
Income tax (benefit) expense	$ 6,380	$ (161)

Note 13 - Income Taxes - Inco_2

Note 13 - Income Taxes - Income Tax Rate Reconciliation (Details)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statutory federal income tax rate	(21.00%)	(31.00%)
Federal rate change		351.00%
Deemed dividend and dividends paid		7.00%
Foreign income tax rate differential	4.00%	(62.00%)
Reversal of uncertain tax benefits		(3.00%)
True-up of NOLs	(60.00%)	11.00%
GILTI	37.00%
Other	3.00%	(5.00%)
Valuation allowance	92.00%	(268.00%)
Effective income tax rate	(19.00%)

Note 13 - Income Taxes - Deferr

Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Net operating loss carryforwards	$ 181,657	$ 210,194
Research and development and other tax credit carryforwards	13,046	12,828
Accruals and reserves	14,781	22,406
Fixed assets and intangible assets	1,553	1,568
Other	2,785	12,996
Gross deferred tax assets	213,822	259,992
Valuation allowance	(196,340)	(227,686)
Total deferred tax assets	17,482	32,306
Intercompany Debt	(16,028)	(29,130)
Other	(1,794)	(2,744)
Total deferred tax liabilities	(17,822)	(31,874)
Net deferred tax liabilities	$ (340)
Net deferred tax asset		$ 432

Note 14 - Stockholders' Equit_2

Note 14 - Stockholders' Equity (Details Textual) - USD ($)	May 10, 2017	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value		$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		532,053
Share-based Payment Arrangement, Expense		$ 3,030,000	2,692,000
Proceeds from Issuance or Sale of Equity, Total			17,000,000
Over-Allotment Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	30 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	600,000
The 2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		367,507
The 2007 Director Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		2 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Fair Value		$ 40,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value		$ 40,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		77,587
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		239,954
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date		15.00%
Employee Stock Purchase Plan [Member] | Maximum [Member]
Share-based Payment Arrangement, Expense		$ 100,000	100,000
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		0
Share-based Payment Arrangement, Expense		$ 221,000	227,000
Share-based Payment Arrangement, Option [Member] | The 2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Share-based Payment Arrangement, Option [Member] | The 2007 Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Share-based Payment Arrangement, Option [Member] | The 2007 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value		$ 3,600,000	3,300,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		$ 2,600,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition		1 year 182 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 2,600,000	1,400,000
Share-based Payment Arrangement, Expense		$ 2,781,000	$ 2,434,000
Restricted Stock [Member] | The 2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		57,000	267,125

Note 14 - Stockholders' Equit_3

Note 14 - Stockholders' Equity - Components of Employee Stock-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock-based compensation expense	$ 3,030	$ 2,692
Share-based Payment Arrangement, Option [Member]
Stock-based compensation expense	221	227
Restricted Stock [Member]
Stock-based compensation expense	2,781	2,434
Awards by Employee Stock Purchase Plan [Member]
Stock-based compensation expense	$ 28	$ 31

Note 14 - Stockholders' Equit_4

Note 14 - Stockholders' Equity - Summarizes Employee Stock-based Compensation Expense by Financial Statement Line Item (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock-based compensation expense	$ 3,030	$ 2,692
Cost of Sales [Member]
Stock-based compensation expense	116	137
Research and Development Expense [Member]
Stock-based compensation expense	365	373
Selling, General and Administrative Expenses [Member]
Stock-based compensation expense	$ 2,549	$ 2,182

Note 14 - Stockholders' Equit_5

Note 14 - Stockholders' Equity - Options Activities (Details) - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Outstanding, options (in shares)	280,891
Outstanding, weighted-average exercise price (in dollars per share)	$ 69.51
Outstanding, aggregate intrinsic value	$ 0	$ 0
Canceled/forfeited, options (in shares)	(116,626)
Canceled/forfeited, weighted-average exercise price (in dollars per share)	$ 31.76
Outstanding, options (in shares)	164,265
Outstanding, weighted-average exercise price (in dollars per share)	$ 96.30
Outstanding, weighted-average remaining contractual term (Year)	3 years 36 days
Exercisable, options (in shares)	164,265
Exercisable, weighted-average exercise price (in dollars per share)	$ 96.30
Exercisable, weighted-average remaining contractual term (Year)	3 years
Fully vested and expected to vest, options (in shares)	164,265
Fully vested and expected to vest, weighted-average exercise price (in dollars per share)	$ 96.30
Fully vested and expected to vest, weighted-average remaining contractual term (Year)	3 years 36 days
Fully vested and expected to vest, aggregate intrinsic value

Note 14 - Stockholders' Equit_6

Note 14 - Stockholders' Equity - Restricted Stock Activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2019USD ($)$ / sharesshares
Outstanding, restricted stock (in shares) | shares	896,486
Outstanding, restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 4.65
Granted, restricted stock (in shares) | shares	532,053
Granted, restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 6.90
Vested, restricted stock (in shares) | shares	(405,802)
Vested, restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 6.10
Forfeited, restricted stock (in shares) | shares	(68,789)
Forfeited, restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.04
Outstanding, restricted stock (in shares) | shares	953,948
Outstanding, restricted stock, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.26
Outstanding, restricted stock, intrinsic aggregate value | $	$ 12,268

Note 15 - Commitments and Con_3

Note 15 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Restricted Cash and Cash Equivalents, Noncurrent, Total	$ 715	$ 165

Note 15 - Commitments and Con_4

Note 15 - Commitments and Contingencies - Schedule of Minimum Future Lease Commitments (Details) $ in Thousands	Mar. 31, 2019USD ($)
2020	$ 1,121
2021	894
2022	648
2023	416
2024	65
Total	$ 3,144

Note 15 - Commitments and Con_5

Note 15 - Commitments and Contingencies - Rent Expense Under the Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Rent expense	$ 1,286	$ 1,510

Note 16 - Employee Benefit Pl_2

Note 16 - Employee Benefit Plans (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Defined Contribution Plan, Company Contribution, Percentage Match Common Stock	50.00%
Defined Contribution Plan, Percentage of First Eligible Employee Contribution Matched by Employer	6.00%
Defined Contribution Plan, Cost	$ 0.3	$ 0.4

Note 17 - Restructuring (Detail

Note 17 - Restructuring (Details Textual) - USD ($) $ in Thousands	Apr. 04, 2017	Mar. 31, 2019	Mar. 31, 2018
Restructuring Charges, Total		$ 450	$ 1,527
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent	8.00%
Employee Severance [Member]
Restructuring Charges, Total			1,300
Employee Severance [Member] | Former Executive Officer [Member]
Restructuring Charges, Total			$ 500
Restructuring and Related Costs, Period of Post-employment Salary	1 year 180 days

Note 17 - Restructuring - Restr

Note 17 - Restructuring - Restructuring Charges and Cash Payments (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accrued restructuring balance, beginning	$ 435
Restructuring Charges, Total	450	1,527
Cash payments	(885)	(1,092)
Accrued restructuring balance, ending		435
Charges to operations	450	1,527
Cash payments	(885)	(1,092)
Employee Severance Pay and Benefits [Member]
Accrued restructuring balance, beginning	262
Restructuring Charges, Total		1,325
Cash payments	(262)	(1,063)
Accrued restructuring balance, ending		262
Charges to operations		1,325
Cash payments	(262)	(1,063)
Facility Exit and Relocation Costs [Member]
Accrued restructuring balance, beginning	173
Restructuring Charges, Total	450	202
Cash payments	(623)	(29)
Accrued restructuring balance, ending		173
Charges to operations	450	202
Cash payments	$ (623)	$ (29)

Note 18 - Business Segments (De

Note 18 - Business Segments (Details Textual) $ in Thousands	12 Months Ended
	Mar. 31, 2019USD ($)MWh	Mar. 31, 2018USD ($)
Number of Reportable Segments	2	2
Share-based Payment Arrangement, Expense	$ 3,030	$ 2,692
Restructuring Charges, Total	450	1,527
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		71
Corporate, Non-Segment [Member]
Share-based Payment Arrangement, Expense	3,000	2,700
Restructuring Charges, Total	$ 500	$ 1,500
Minimum [Member]
Power of Wind Turbines | MWh	2

Note 18 - Business Segments - O

Note 18 - Business Segments - Operating Results for Business Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues	$ 56,207	$ 48,403
Operating profit (loss)	34,023	(32,157)
Corporate, Non-Segment [Member]
Operating profit (loss)	(3,480)	(4,290)
Grid [Member]
Revenues	34,290	34,109
Grid [Member] | Operating Segments [Member]
Operating profit (loss)	(10,600)	(18,963)
Wind [Member]
Revenues	21,917	14,294
Wind [Member] | Operating Segments [Member]
Operating profit (loss)	$ 48,103	$ (8,904)

Note 18 - Business Segments - T

Note 18 - Business Segments - Total Business Segments Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Total assets	$ 119,330	$ 88,175
Operating Segments [Member] | Grid [Member]
Total assets	31,075	37,012
Operating Segments [Member] | Wind [Member]
Total assets	8,167	16,790
Corporate, Non-Segment [Member]
Total assets	$ 80,088	$ 34,373

Note 18 - Business Segments - G

Note 18 - Business Segments - Geographic Information about Property, Plant and Equipment Associated with Particular Regions (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Property, Plant and Equipment, Net	$ 8,972	$ 12,513
North America [Member]
Property, Plant and Equipment, Net	8,555	11,933
Europe [Member]
Property, Plant and Equipment, Net	345	478
Asia Pacific [Member]
Property, Plant and Equipment, Net	$ 72	$ 102

Note 19 - Recent Accounting P_2

Note 19 - Recent Accounting Pronouncements (Details Textual) - USD ($) $ in Thousands	Apr. 01, 2019	Mar. 31, 2019	Apr. 01, 2018
Cumulative Effect of New Accounting Principle in Period of Adoption		$ 33
Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member] | Minimum [Member]
Operating Lease, Right-of-Use Asset	$ 3,000
Operating Lease, Liability, Total	3,000
Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member] | Maximum [Member]
Operating Lease, Right-of-Use Asset	5,000
Operating Lease, Liability, Total	$ 5,000
Accounting Standards Update 2017-05 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ 100