Motorcar Parts of America (MPAA) 10-Q 12 Nov 19 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2019	Nov. 05, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	MOTORCAR PARTS AMERICA INC
Entity Central Index Key	0000918251
Current Fiscal Year End Date	--03-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		18,958,430
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Address, State or Province	CA

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Current assets:
Cash and cash equivalents	$ 6,455,000	$ 9,911,000
Short-term investments	2,192,000	3,273,000
Accounts receivable - net	69,914,000	56,015,000
Inventory - net	250,667,000	233,726,000
Inventory unreturned	8,684,000	8,469,000
Contract assets (see Note 5)	19,471,000	22,183,000
Income tax receivable	10,205,000	10,009,000
Prepaid expenses and other current assets	8,846,000	9,296,000
Total current assets	376,434,000	352,882,000
Plant and equipment - net	40,723,000	35,151,000
Operating lease assets (see Note 9)	49,262,000	0
Long-term deferred income taxes	10,237,000	9,746,000
Long-term contract assets (see Note 5)	224,329,000	221,876,000
Goodwill	3,205,000	3,205,000
Intangible assets - net	7,493,000	8,431,000
Other assets	875,000	1,071,000
TOTAL ASSETS	712,558,000	632,362,000
Current liabilities:
Accounts payable	85,307,000	92,461,000
Accrued liabilities	14,318,000	14,604,000
Customer finished goods returns accrual	23,621,000	22,615,000
Contract liabilities (see Note 8)	24,064,000	30,599,000
Revolving loan	144,000,000	110,400,000
Other current liabilities	4,852,000	4,990,000
Operating lease liabilities (see Note 9)	4,487,000	0
Current portion of term loan	3,678,000	3,685,000
Total current liabilities	304,327,000	279,354,000
Term loan, less current portion	22,299,000	24,187,000
Long-term contract liabilities (see Note 8)	49,327,000	40,889,000
Long-term deferred income taxes	130,000	257,000
Long-term operating lease liabilities (see Note 9)	47,925,000	0
Other liabilities	7,205,000	7,920,000
Total liabilities	431,213,000	352,607,000
Commitments and contingencies
Shareholders' equity:
Preferred stock	0	0
Common stock; par value $.01 per share, 50,000,000 shares authorized; 18,944,886 and 18,817,400 shares issued and outstanding at September 30, 2019 and March 31, 2019, respectively	189,000	188,000
Additional paid-in capital	216,430,000	215,047,000
Retained earnings	71,445,000	71,407,000
Accumulated other comprehensive loss	(6,719,000)	(6,887,000)
Total shareholders' equity	281,345,000	279,755,000
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	712,558,000	632,362,000
Series A Junior Participating Preferred Stock [Member]
Shareholders' equity:
Preferred stock	$ 0	$ 0

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2019	Mar. 31, 2019
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	50,000,000	50,000,000
Common stock, issued (in shares)	18,944,886	18,817,400
Common stock, outstanding (in shares)	18,944,886	18,817,400
Series A Junior Participating Preferred Stock [Member]
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	20,000	20,000
Preferred stock, issued (in shares)	0	0

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Condensed Consolidated Statements of Operations (Unaudited) [Abstract]
Net sales	$ 150,374,000	$ 127,939,000	$ 259,522,000	$ 219,607,000
Cost of goods sold	113,801,000	102,228,000	205,366,000	177,544,000
Gross profit	36,573,000	25,711,000	54,156,000	42,063,000
Operating expenses:
General and administrative	14,285,000	8,997,000	26,285,000	21,088,000
Sales and marketing	5,448,000	4,537,000	10,367,000	8,929,000
Research and development	2,148,000	1,784,000	4,520,000	3,520,000
Total operating expenses	21,881,000	15,318,000	41,172,000	33,537,000
Operating income	14,692,000	10,393,000	12,984,000	8,526,000
Interest expense, net	6,523,000	5,699,000	12,696,000	10,774,000
Income (loss) before income tax expense (benefit)	8,169,000	4,694,000	288,000	(2,248,000)
Income tax expense (benefit)	1,980,000	1,181,000	250,000	(266,000)
Net income (loss)	$ 6,189,000	$ 3,513,000	$ 38,000	$ (1,982,000)
Basic net income (loss) per share (in dollars per share)	$ 0.33	$ 0.19	$ 0	$ (0.10)
Diluted net income (loss) per share (in dollars per share)	$ 0.32	$ 0.18	$ 0	$ (0.10)
Weighted average number of shares outstanding:
Basic (in shares)	18,903,182	18,878,674	18,862,901	18,887,214
Diluted (in shares)	19,217,327	19,319,465	19,246,599	18,887,214

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) [Abstract]
Net income (loss)	$ 6,189,000	$ 3,513,000	$ 38,000	$ (1,982,000)
Other comprehensive (loss) income, net of tax:
Foreign currency translation (loss) gain	(431,000)	(2,000)	168,000	(717,000)
Total other comprehensive (loss) income, net of tax	(431,000)	(2,000)	168,000	(717,000)
Comprehensive income (loss)	$ 5,758,000	$ 3,511,000	$ 206,000	$ (2,699,000)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative-effect adjustment | ASU 2016-01 [Member]	$ 0	$ 0	$ 746,000	$ (746,000)	$ 0
Beginning balance at Mar. 31, 2018	$ 189,000	213,609,000	78,510,000	(5,428,000)	286,880,000
Beginning balance (in shares) at Mar. 31, 2018	18,893,102
Adjusted beginning balance at Mar. 31, 2018	$ 189,000	213,609,000	79,256,000	(6,174,000)	286,880,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation recognized under employee stock plans	0	941,000	0	0	941,000
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes	$ 0	(192,000)	0	0	(192,000)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares)	23,006
Foreign currency translation	$ 0	0	0	(715,000)	(715,000)
Net income (loss)	0	0	(5,495,000)	0	(5,495,000)
Ending balance at Jun. 30, 2018	$ 189,000	214,358,000	73,761,000	(6,889,000)	281,419,000
Ending balance (in shares) at Jun. 30, 2018	18,916,108
Beginning balance at Mar. 31, 2018	$ 189,000	213,609,000	78,510,000	(5,428,000)	286,880,000
Beginning balance (in shares) at Mar. 31, 2018	18,893,102
Adjusted beginning balance at Mar. 31, 2018	$ 189,000	213,609,000	79,256,000	(6,174,000)	286,880,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation					(717,000)
Net income (loss)					(1,982,000)
Ending balance at Sep. 30, 2018	$ 188,000	211,593,000	77,274,000	(6,891,000)	282,164,000
Ending balance (in shares) at Sep. 30, 2018	18,799,477
Beginning balance at Jun. 30, 2018	$ 189,000	214,358,000	73,761,000	(6,889,000)	281,419,000
Beginning balance (in shares) at Jun. 30, 2018	18,916,108
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation recognized under employee stock plans	$ 0	1,180,000	0	0	1,180,000
Exercise of stock options	$ 1,000	243,000	0	0	244,000
Exercise of stock options (in shares)	39,032
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes	$ 0	(128,000)	0	0	(128,000)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares)	8,152
Repurchase and cancellation of treasury stock, including fees	$ (2,000)	(4,060,000)	0	0	(4,062,000)
Repurchase and cancellation of treasury stock, including fees (in shares)	(163,815)
Foreign currency translation	$ 0	0	0	(2,000)	(2,000)
Net income (loss)	0	0	3,513,000	0	3,513,000
Ending balance at Sep. 30, 2018	$ 188,000	211,593,000	77,274,000	(6,891,000)	282,164,000
Ending balance (in shares) at Sep. 30, 2018	18,799,477
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative-effect adjustment | ASU 2016-01 [Member]					0
Beginning balance at Mar. 31, 2019	$ 188,000	215,047,000	71,407,000	(6,887,000)	$ 279,755,000
Beginning balance (in shares) at Mar. 31, 2019	18,817,400				18,817,400
Adjusted beginning balance at Mar. 31, 2019				(6,887,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation recognized under employee stock plans	$ 0	988,000	0	0	$ 988,000
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes	$ 1,000	(363,000)	0	0	(362,000)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares)	36,872
Foreign currency translation	$ 0	0	0	599,000	599,000
Net income (loss)	0	0	(6,151,000)	0	(6,151,000)
Ending balance at Jun. 30, 2019	$ 189,000	215,672,000	65,256,000	(6,288,000)	274,829,000
Ending balance (in shares) at Jun. 30, 2019	18,854,272
Beginning balance at Mar. 31, 2019	$ 188,000	215,047,000	71,407,000	(6,887,000)	$ 279,755,000
Beginning balance (in shares) at Mar. 31, 2019	18,817,400				18,817,400
Adjusted beginning balance at Mar. 31, 2019				(6,887,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation					$ 168,000
Net income (loss)					38,000
Ending balance at Sep. 30, 2019	$ 189,000	216,430,000	71,445,000	(6,719,000)	$ 281,345,000
Ending balance (in shares) at Sep. 30, 2019	18,944,886				18,944,886
Beginning balance at Jun. 30, 2019	$ 189,000	215,672,000	65,256,000	(6,288,000)	$ 274,829,000
Beginning balance (in shares) at Jun. 30, 2019	18,854,272
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation recognized under employee stock plans	$ 0	1,053,000	0	0	1,053,000
Exercise of stock options	$ 0	405,000	0	0	405,000
Exercise of stock options (in shares)	52,800
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes	$ 0	(700,000)	0	0	(700,000)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares)	37,814
Foreign currency translation	$ 0	0	0	(431,000)	(431,000)
Net income (loss)	0	0	6,189,000	0	6,189,000
Ending balance at Sep. 30, 2019	$ 189,000	$ 216,430,000	$ 71,445,000	$ (6,719,000)	$ 281,345,000
Ending balance (in shares) at Sep. 30, 2019	18,944,886				18,944,886

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income (loss)	$ 38,000	$ (1,982,000)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	3,631,000	2,834,000
Amortization of intangible assets	988,000	384,000
Amortization and write-off of debt issuance costs	383,000	647,000
Amortization of interest on contract liabilities, net	478,000	513,000
Noncash lease expense	2,431,000	0
Loss due to the change in the fair value of the contingent consideration	123,000	0
Loss due to the remeasurement of lease liabilities	637,000	0
Gain on short-term investments	(136,000)	(180,000)
Net provision for inventory reserves	6,656,000	5,285,000
Net provision for customer payment discrepancies	721,000	274,000
Net provision for doubtful accounts	106,000	206,000
Deferred income taxes	(638,000)	(667,000)
Share-based compensation expense	2,041,000	2,121,000
Loss on disposal of plant and equipment	3,000	11,000
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(14,672,000)	6,598,000
Inventory	(23,254,000)	(32,380,000)
Inventory unreturned	(215,000)	(1,592,000)
Income tax receivable	(200,000)	(3,595,000)
Prepaid expenses and other current assets	506,000	(658,000)
Other assets	182,000	(79,000)
Accounts payable and accrued liabilities	(6,600,000)	17,840,000
Customer finished goods returns accrual	1,005,000	2,156,000
Contract assets, net	261,000	(8,773,000)
Contract liabilities, net	1,405,000	2,724,000
Operating lease liabilities	(2,107,000)	0
Other liabilities	(509,000)	1,904,000
Net cash used in operating activities	(26,736,000)	(6,409,000)
Cash flows from investing activities:
Purchase of plant and equipment	(6,943,000)	(5,259,000)
Proceeds from sale of plant and equipment	26,000	0
Change in short-term investments	1,216,000	(222,000)
Net cash used in investing activities	(5,701,000)	(5,481,000)
Cash flows from financing activities:
Borrowings under revolving loan	42,000,000	35,200,000
Repayments of revolving loan	(8,400,000)	(36,294,000)
Borrowings under term loan	0	13,594,000
Repayments of term loan	(1,875,000)	(782,000)
Payments for debt issuance costs	(901,000)	(1,757,000)
Payments on finance lease obligations	(1,108,000)
Payments on finance lease obligations		(711,000)
Exercise of stock options	405,000	244,000
Cash used to net share settle equity awards	(1,062,000)	(320,000)
Repurchase of common stock, including fees	0	(4,062,000)
Net cash provided by financing activities	29,059,000	5,112,000
Effect of exchange rate changes on cash and cash equivalents	(78,000)	(96,000)
Net decrease in cash and cash equivalents	(3,456,000)	(6,874,000)
Cash and cash equivalents - Beginning of period	9,911,000	13,049,000
Cash and cash equivalents - End of period	6,455,000	6,175,000
Supplemental disclosures of cash flow information:
Cash paid for interest, net	11,859,000	9,534,000
Cash paid for income taxes, net of refunds	0	3,263,000
Cash paid for operating leases	3,538,000	0
Cash paid for finance leases	1,249,000	0
Plant and equipment acquired under finance leases	2,308,000	0
Assets acquired under operating leases	$ 1,497,000	$ 0

Company Background and Organiza

Company Background and Organization	6 Months Ended
	Sep. 30, 2019
Company Background and Organization [Abstract]
Company Background and Organization	1. Company Background and Organization Motorcar Parts of America, Inc. and its subsidiaries (the “Company”, or “MPA”) is a leading supplier of automotive aftermarket non-discretionary replacement parts and diagnostic equipment. These replacement parts are primarily sold to automotive retail chain stores and warehouse distributors throughout North America and to major automobile manufacturers for both their aftermarket programs and warranty replacement programs (“OES”). The Company’s diagnostic equipment primarily serves the global automotive component and powertrain testing market. The Company’s products include (i) rotating electrical products such as alternators and starters, (ii) wheel hub assemblies and bearings, (iii) brake master cylinders, (iv) brake calipers (introduced in August 2019), and (v) other products. Other products include: (i) turbochargers, (ii) brake power boosters, (iii) diagnostics systems, (iv)advanced power emulators (AC and DC), and (v) custom power electronic products. The Company primarily ships its products from its facilities and various third party warehouse distribution centers in North America. Pursuant to the guidance provided under the Financial Accounting Statement Board (“FASB”) Accounting Standards Codification (“ASC”) for segment reporting, the Company has identified its chief operating decision maker (“CODM”), reviewed the documents used by the CODM, and understands how such documents are used by the CODM to make financial and operating decisions. The Company has determined through this review process that its business comprises three separate operating segments. Two of the operating segments meet all of the aggregation criteria, and are aggregated. The remaining operating segment does not meet the quantitative thresholds for individual disclosure. Since this immaterial operating segment meets the aggregation criteria of ASC 280, the Company has combined its operating segments into one reportable segment. In January 2019, the Company completed the acquisition of all the equity interests of Dixie Electric, Ltd (“Dixie”). During the three months ended September 30, 2019, the Company finalized the purchase price allocation of Dixie without any material adjustments.

Basis of Presentation and New A

Basis of Presentation and New Accounting Pronouncements	6 Months Ended
	Sep. 30, 2019
Basis of Presentation and New Accounting Pronouncements [Abstract]
Basis of Presentation and New Accounting Pronouncements	2. Basis of Presentation and New Accounting Pronouncements Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended September 30, 2019 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2020. This report should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto for the fiscal year ended March 31, 2019, which are included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on June 28, 2019. The accompanying condensed consolidated financial statements have been prepared on a consistent basis with, and there have been no material changes to, except as noted below, the accounting policies described in Note 3, Summary of Significant Accounting Policies, to the consolidated financial statements that are presented in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2019. New Accounting Pronouncements Recently Adopted Leases In February 2016, the FASB issued new guidance that requires balance sheet recognition of a lease asset and lease liability by lessees for all leases, other than leases with a term of 12 months or less if the short-term lease exclusion expedient is elected. The new guidance also requires new disclosures providing additional qualitative and quantitative information about the amounts recorded in the financial statements. The new guidance requires a modified retrospective approach with optional practical expedients. The FASB provided entities with an additional transition method, which allows an entity to apply this guidance as of the beginning of the period of adoption instead of the beginning of the earliest comparative period presented in the entity’s financial statements. The Company adopted this guidance on April 1, 2019 using the additional transition method. The Company also elected certain practical expedients permitted under the transition guidance, including the package of practical expedients, which allowed it not to reassess lease classification for leases that commenced prior to the adoption date. In addition, the Company elected to exempt leases with an initial term of 12 months or less from balance sheet recognition and, for all classes of assets, combining non-lease components with lease components. Upon adoption, the Company recorded operating lease liabilities of $53,043,000 and corresponding operating lease assets of $50,773,000. The difference between the operating lease assets and liabilities recognized on the Company’s condensed consolidated balance sheets primarily related to accrued rent on existing leases that were offset against the operating lease asset upon adoption. There was an immaterial reclassification of non-lease components to finance lease assets and finance lease liabilities upon adoption due to the Company’s election to combine non-lease components with lease components. The adoption of the new guidance did not have any impact on the Company’s rent expense and condensed consolidated statement of cash flows. However, the Company has material nonfunctional currency leases that could have a material impact on the Company’s condensed consolidated statements of operations. As required for other monetary liabilities, lessees shall remeasure a foreign currency-denominated lease liability using the exchange rate at each reporting date, but the lease assets are nonmonetary assets measured at historical rates, which are not affected by subsequent changes in the exchange rates. The Company recorded losses of $1,139,000 and $637,000 in general and administrative expenses in connection with the remeasurement of foreign currency-denominated lease liabilities during the three and six months ended September 30, 2019, respectively. See Note 9 for additional discussion of the adoption of ASC 842 and the impact on the Company’s financial statements. New Accounting Pronouncements Not Yet Adopted Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued an accounting pronouncement related to the measurement of credit losses on financial instruments. This pronouncement, along with a subsequent Accounting Standards Updates (“ASU”) issued to clarify certain provisions of the new guidance, changes the impairment model for most financial assets and will require the use of an “expected loss” model for instruments measured at amortized cost. Under this model, entities will be required to estimate the lifetime expected credit loss on such instruments and record an allowance to offset the amortized cost basis of the financial asset, resulting in a net presentation of the amount expected to be collected on the financial asset. This pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2019. The Company plans to adopt this pronouncement for its fiscal year beginning April 1, 2020. The Company is currently evaluating the impact this guidance will have on its consolidated financial statements, as well as any impacts on its business processes, systems and internal controls. Fair Value Measurements In August 2018, the FASB issued guidance , which changes the disclosure requirements for fair value measurements by removing, adding and modifying certain disclosures. The standard is effective for financial statements issued for fiscal years , and for interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact this guidance will have on its consolidated financial statements.

Accounts Receivable - Net

Accounts Receivable - Net	6 Months Ended
	Sep. 30, 2019
Accounts Receivable - Net [Abstract]
Accounts Receivable - Net	3. Accounts Receivable — Net Accounts receivable — net includes offset accounts related to customer payment discrepancies, returned goods authorizations (“RGA”) issued for in-transit unit returns, and potential bad debts. Accounts receivable — net is comprised of the following: September 30, 2019 March 31, 2019 Accounts receivable — trade $ 86,974,000 $ 75,847,000 Allowance for bad debts (4,187,000 ) (4,100,000 ) Customer payment discrepancies (1,169,000 ) (854,000 ) Customer returns RGA issued (11,704,000 ) (14,878,000 ) Less: total accounts receivable offset accounts (17,060,000 ) (19,832,000 ) Total accounts receivable — net $ 69,914,000 $ 56,015,000

Inventory

Inventory	6 Months Ended
	Sep. 30, 2019
Inventory [Abstract]
Inventory	4. Inventory Inventory–net is comprised of the following: September 30, 2019 March 31, 2019 Inventory - net Raw materials $ 104,180,000 $ 95,757,000 Work-in-process 4,720,000 3,502,000 Finished goods 154,901,000 146,366,000 263,801,000 245,625,000 Less allowance for excess and obsolete inventory (13,134,000 ) (11,899,000 ) Total inventory - net $ 250,667,000 $ 233,726,000 Inventory unreturned $ 8,684,000 $ 8,469,000

Contract Assets

Contract Assets	6 Months Ended
	Sep. 30, 2019
Contract Assets [Abstract]
Contract Assets	5. Contract Assets Contract assets are comprised of the following: September 30, 2019 March 31, 2019 Short-term contract assets Cores expected to be returned by customers $ 11,776,000 $ 14,671,000 Upfront payments to customers 3,312,000 3,101,000 Core premiums paid to customers 4,383,000 4,411,000 Total short-term contract assets $ 19,471,000 $ 22,183,000 Long-term contract assets Remanufactured cores held at customers’ locations $ 203,024,000 $ 196,914,000 Upfront payments to customers 1,234,000 2,775,000 Core premiums paid to customers 14,502,000 16,618,000 Long-term core inventory deposits 5,569,000 5,569,000 Total long-term contract assets $ 224,329,000 $ 221,876,000

Significant Customer and Other

Significant Customer and Other Information	6 Months Ended
	Sep. 30, 2019
Significant Customer and Other Information [Abstract]
Significant Customer and Other Information	6. Significant Customer and Other Information Significant Customer Concentrations The largest customers accounted for the following total percentage of net sales: Three Months Ended Six Months Ended 2019 2018 2019 2018 Net sales Customer A 41 % 39 % 40 % 38 % Customer B 20 % 26 % 21 % 24 % Customer C 23 % 20 % 22 % 22 % The largest customers accounted for the following total percentage of accounts receivable – trade: September 30, 2019 March 31, 2019 Accounts receivable - trade Customer A 33 % 34 % Customer B 15 % 18 % Customer C 23 % 16 % Geographic and Product Information The Company’s products are predominantly sold in the U.S. and accounted for the following total percentage of net sales: Three Months Ended Six Months Ended 2019 2018 2019 2018 Rotating electrical products 77 % 80 % 76 % 79 % Wheel hub products 15 % 14 % 16 % 16 % Brake caliper products 3 % - % 2 % - % Brake master cylinders products 1 % 2 % 2 % 2 % Other products 4 % 4 % 4 % 3 % 100 % 100 % 100 % 100 % Significant Supplier Concentrations The Company had no suppliers that accounted for more than 10% of inventory purchases for the three and six months ended September 30, 2019 and 2018.

Debt

Debt	6 Months Ended
	Sep. 30, 2019
Debt [Abstract]
Debt	7. Debt The Company is party to a $230,000,000 senior secured financing, (as amended from time to time, the “Credit Facility”) with a syndicate of lenders, and PNC Bank, National Association, as administrative agent, consisting of (i) a $200,000,000 revolving loan facility, subject to borrowing base restrictions, a $20,000,000 sublimit for borrowings by Canadian borrowers, and a $15,000,000 sublimit for letters of credit (the “Revolving Facility”) and (ii) a $30,000,000 term loan facility (the “Term Loans”). The loans under the Credit Facility mature on June 5, 2023. The Credit Facility permits the payment of up to $20,000,000 of dividends and share repurchases per fiscal year, subject to a minimum availability threshold and pro forma compliance with financial covenants. In connection with the Credit Facility, the lenders have a security interest in substantially all of the assets of the Company. In June 2019, the Company entered into a second amendment to the Credit Facility (the “Second Amendment”). The Second Amendment, among other things, (i) increased the total size of the Revolving Facility to $238,620,000, (ii) modified the fixed charge coverage ratio financial covenant, (iii) modified the definition of “Consolidated EBITDA”, (iv) modified the borrowing base definition to, among other things, include brake-related products as eligible inventory, (v) increased the letter of credit sublimit to $20,000,000, (vi) increased the Canadian revolving sublimit and swing line sublimit to $24,000,000, (vii) increased the swing line sublimit to $23,862,000, (viii) permitted up to $5,000,000 of sale and lease back transactions per fiscal year, (ix) increased the permitted amount of certain capital expenditures, (x) increased the permitted amount of operating lease obligations per fiscal year, and (xi) increased certain other covenant-related baskets. The Company capitalized $901,000 of new debt issuance costs in connection with the Second Amendment, which is included in prepaid and other current assets in the condensed consolidated balance sheet at September 30, 2019. The Term Loans require quarterly principal payments of $937,500 beginning October 1, 2018. The Credit Facility bears interest at rates equal to either LIBOR plus a margin of 2.25%, 2.50% or 2.75% or a reference rate plus a margin of 1.25%, 1.50% or 1.75%, in each case depending on the senior leverage ratio as of the applicable measurement date. There is also a facility fee of 0.375% to 0.50%, depending on the senior leverage ratio as of the applicable measurement date. The interest rate on the Company’s Term Loans and Revolving Facility was 4.86% and 4.84%, at September 30, 2019, respectively, and 5.24% at March 31, 2019. The Credit Facility, among other things, requires the Company to maintain certain financial covenants including a maximum senior leverage ratio and a minimum fixed charge coverage ratio. The Company was in compliance with all financial covenants at September 30, 2019. In addition to other covenants, the Credit Facility places limits on the Company’s ability to incur liens, incur additional indebtedness, make loans and investments, engage in mergers and acquisitions, engage in asset sales, redeem or repurchase capital stock, alter the business conducted by the Company and its subsidiaries, transact with affiliates, prepay, redeem or purchase subordinated debt, and amend or otherwise alter debt agreements. The following summarizes information about the Term Loans at: September 30, 2019 March 31, 2019 Principal amount of term loan $ 26,250,000 $ 28,125,000 Unamortized financing fees (273,000 ) (253,000 ) Net carrying amount of term loan 25,977,000 27,872,000 Less current portion of term loan (3,678,000 ) (3,685,000 ) Long-term portion of term loan $ 22,299,000 $ 24,187,000 Future repayments of the Term Loans are as follows: Year Ending March 31, 2020 - remaining six months $ 1,875,000 2021 3,750,000 2022 3,750,000 2023 3,750,000 2024 13,125,000 Total payments $ 26,250,000 The Company had $144,000,000 and $110,400,000 outstanding under the Revolving Facility at September 30, 2019 and March 31, 2019, respectively. In addition, $4,039,000 was outstanding for letters of credit at September 30, 2019. At September 30, 2019, after certain contractual adjustments, $74,029,000 was available under the Revolving Facility.

Contract Liabilities

Contract Liabilities	6 Months Ended
	Sep. 30, 2019
Contract Liabilities [Abstract]
Contract Liabilities	8. Contract Liabilities Contract liabilities are comprised of the following: September 30, 2019 March 31, 2019 Short-term contract liabilities Customer allowances earned $ 10,365,000 $ 12,755,000 Customer core returns accruals 3,973,000 3,933,000 Customer deposits 1,377,000 2,674,000 Accrued core payment, net 8,349,000 11,237,000 Total short-term contract liabilities $ 24,064,000 $ 30,599,000 Long-term contract liabilities Customer core returns accruals $ 38,841,000 $ 25,722,000 Accrued core payment, net 10,486,000 15,167,000 Total long-term contract liabilities $ 49,327,000 $ 40,889,000

Leases

Leases	6 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	9. Leases The Company leases various facilities in North America and Asia under operating leases expiring through December 2032. The Company has two non-cancellable lease agreements for two buildings in Mexico which were executed, but had not commenced as of September 30, 2019, and accordingly were not included in the operating lease assets and operating lease liabilities as of September 30, 2019. Total commitments for the 15-year lease terms of these agreements is $25,542,000.The Company also has finance leases for certain office and manufacturing equipment, which generally range from three to five years. The Company determines if an arrangement contains a lease at inception. Lease assets and lease liabilities are recorded based on the present value of lease payments over the lease term, which includes the minimum unconditional term of the lease. Certain of the Company’s leases include options to extend the leases for up to five years. When the Company has the option to extend the lease term, terminate the lease before the contractual expiration date, or purchase the leased asset, and it is reasonably certain that it will exercise the option, the option is considered in determining the classification and measurement of the lease. The lease assets are recorded net of any lease incentives received. Lease assets are tested for impairment in the same manner as long-lived assets used in operations. As the rate implicit for each of its leases is not readily determinable, the Company uses its incremental borrowing rate, based on the information available at the lease commencement date, for each of its leases in determining the present value of its expected lease payments. The Company’s incremental borrowing rate is determined by analyzing and combining an applicable risk-free rate, a financial spread adjustment and any lease specific adjustment. Certain leases contain provisions for property-related costs that are variable in nature for which the Company is responsible, including common area maintenance and other property operating services, which are expensed as incurred and not included in the determination of lease assets and lease liabilities. These costs are calculated based on a variety of factors including property values, tax and utility rates, property services fees, and other factors. The Company records rent expense for operating leases, some of which have escalating rent payments, on a straight-line basis over the lease term. Balance sheet information for leases is as follows: September 30, 2019 Leases Classification Assets: Operating Operating lease assets $ 49,262,000 Finance Plant and equipment 7,079,000 Total leased assets $ 56,341,000 Liabilities: Current Operating Operating lease liabilities $ 4,487,000 Finance Other current liabilities 2,036,000 Long-term Operating Long-term operating lease liabilities 47,925,000 Finance Other liabilities 4,149,000 Total lease liabilities $ 58,597,000 Lease cost recognized in the condensed consolidated statement of operations is as follows: Three Months Ended Six Months Ended 2019 2019 Lease cost Operating lease cost $ 1,987,000 $ 3,885,000 Short-term lease cost 295,000 698,000 Variable lease cost 157,000 287,000 Finance lease cost: Amortization of finance lease assets 372,000 730,000 Interest on finance lease liabilities 73,000 141,000 Total lease cost $ 2,884,000 $ 5,741,000 Maturities of lease commitments at September 30, 2019 were as follows: Maturity of lease liabilities Operating Leases Finance Leases Total 2020 - remaining six months $ 3,799,000 $ 1,172,000 $ 4,971,000 2021 6,957,000 2,074,000 9,031,000 2022 6,168,000 1,740,000 7,908,000 2023 4,968,000 1,131,000 6,099,000 2024 4,866,000 472,000 5,338,000 Thereafter 47,268,000 113,000 47,381,000 Total lease payments 74,026,000 6,702,000 80,728,000 Less amount representing interest (21,614,000 ) (517,000 ) (22,131,000 ) Present value of lease liabilities $ 52,412,000 $ 6,185,000 $ 58,597,000 Other information about leases is as follows: Six Months Ended September 30, Lease term and discount rate Weighted-average remaining lease term (years): Finance leases 3.4 Operating leases 12.0 Weighted-average discount rate: Finance leases 4.8 % Operating leases 5.6 %

Accounts Receivable Discount Pr

Accounts Receivable Discount Programs	6 Months Ended
	Sep. 30, 2019
Accounts Receivable Discount Programs [Abstract]
Accounts Receivable Discount Programs	10. Accounts Receivable Discount Programs The Company uses receivable discount programs with certain customers and their respective banks. Under these programs, the Company may sell those customers’ receivables to those banks at a discount to be agreed upon at the time the receivables are sold. These discount arrangements allow the Company to accelerate receipt of payment on customers’ receivables. The following is a summary of accounts receivable discount programs: Six Months Ended 2019 2018 Receivables discounted $ 205,882,000 $ 191,849,000 Weighted average days 346 338 Annualized weighted average discount rate 3.6 % 4.1 % Amount of discount recognized as interest expense $ 7,196,000 $ 7,441,000

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Sep. 30, 2019
Net Income (Loss) Per Share [Abstract]
Net Income (Loss) Per Share	11. Net Income (Loss) Per Share Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of shares of common stock outstanding during the period. Diluted net income (loss) per share includes the effect, if any, from the potential exercise or conversion of securities, such as stock options and warrants, which would result in the issuance of incremental shares of common stock to the extent the effect is not anti-dilutive. The following presents a reconciliation of basic and diluted net income (loss) per share: Three Months Ended Six Months Ended 2019 2018 2019 2018 Net income (loss) $ 6,189,000 $ 3,513,000 $ 38,000 $ (1,982,000 ) Basic shares 18,903,182 18,878,674 18,862,901 18,887,214 Effect of potentially dilutive securities 314,145 440,791 383,698 - Diluted shares 19,217,327 19,319,465 19,246,599 18,887,214 Net income (loss) per share: Basic net income (loss) per share $ 0.33 $ 0.19 $ 0.00 $ (0.10 ) Diluted net income (loss) per share $ 0.32 $ 0.18 $ 0.00 $ (0.10 ) Potential common shares that would have the effect of increasing diluted net income per share or decreasing diluted net loss per share are considered to be anti-dilutive and as such, these shares are not included in calculating diluted net income (loss) per share. For the three months ended September 30, 2019 and 2018, there were 1,221,744 and 746,094, respectively, of potential common shares not included in the calculation of diluted net income (loss) per share because their effect was anti-dilutive. For the six months ended September 30, 2019 and 2018, there were 1,166,432 and 1,504,794, respectively, of potential common shares not included in the calculation of diluted net income (loss) per share because their effect was anti-dilutive.

Income Taxes

Income Taxes	6 Months Ended
	Sep. 30, 2019
Income Taxes [Abstract]
Income Taxes	12. Income Taxes The Company recorded an income tax expense of $1,980,000, or an effective tax rate of 24.2%, and $1,181,000, or an effective tax rate of 25.2%, for the three months ended September 30, 2019 and 2018, respectively. The Company recorded an income tax expense of $250,000, or an effective tax rate of 86.8%, and an income tax benefit of $266,000, or an effective tax rate of 11.8%, for the six months ended September 30, 2019 and 2018, respectively. The effective tax rates for the six months ended September 30, 2019, were impacted by valuation allowances recorded in connection with the Company’s July 2017 and January 2019 acquisitions. The effective tax rate is based on current projections and any changes in future periods could result in an effective tax rate that is materially different from the current estimate. The Company remains subject to examination for the fiscal years beginning with March 31, 2016. The Company believes no significant changes in the unrecognized tax benefits will occur within the next 12 months.

Financial Risk Management and D

Financial Risk Management and Derivatives	6 Months Ended
	Sep. 30, 2019
Financial Risk Management and Derivatives [Abstract]
Financial Risk Management and Derivatives	13. Financial Risk Management and Derivatives Purchases and expenses denominated in currencies other than the U.S. dollar, which are primarily related to the Company’s overseas facilities, expose the Company to market risk from material movements in foreign exchange rates between the U.S. dollar and the foreign currencies. The Company’s primary risk exposure is from fluctuations in the value of the Mexican peso and to a lesser extent the Chinese yuan. To mitigate these risks, the Company enters into forward foreign currency exchange contracts to exchange U.S. dollars for these foreign currencies. The extent to which forward foreign currency exchange contracts are used is modified periodically in response to the Company’s estimate of market conditions and the terms and length of anticipated requirements. The Company enters into forward foreign currency exchange contracts in order to reduce the impact of foreign currency fluctuations and not to engage in currency speculation. The use of derivative financial instruments allows the Company to reduce its exposure to the risk that the eventual cash outflow resulting from funding the expenses of the foreign operations will be materially affected by changes in exchange rates between the U.S. dollar and the foreign currencies. The Company does not hold or issue financial instruments for trading purposes. The forward foreign currency exchange contracts are designated for forecasted expenditure requirements to fund foreign operations. The Company had forward foreign currency exchange contracts with a U.S. dollar equivalent notional value of $36,791,000 and $32,524,000 at September 30, 2019 and March 31, 2019, respectively. These contracts generally have a term of one year or less, at rates agreed at the inception of the contracts. The counterparty to this derivative transaction is a major financial institution with investment grade credit rating; however, the Company is exposed to credit risk with this institution. The credit risk is limited to the potential unrealized gains (which offset currency fluctuations adverse to the Company) in any such contract should this counterparty fail to perform as contracted. Any changes in the fair values of forward foreign currency exchange contracts are reflected in current period earnings and accounted for as an increase or offset to general and administrative expenses. The following shows the effect of derivative instruments on the condensed consolidated statements of operations: Derivatives Not Designated as Hedging Instruments Gain (Loss) Recognized within General and Administrative Expenses Three Months Ended Six Months Ended 2019 2018 2019 2018 Forward foreign currency exchange contracts $ (663,000 ) $ 1,898,000 $ (628,000 ) $ (768,000 ) The fair value of the forward foreign currency exchange contracts of $421,000 is included in other current liabilities in the condensed consolidated balance sheet at September 30, 2019. The fair value of the forward foreign currency exchange contracts of $207,000 is included in prepaid and other current assets in the condensed consolidated balance sheet at March 31, 2019, respectively. The changes in the fair values of forward foreign currency exchange contracts are included in other liabilities in the condensed consolidated statements of cash flows for the six months ended September 30, 2019 and 2018.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Sep. 30, 2019
Fair Value Measurements [Abstract]
Fair Value Measurements	14. Fair Value Measurements The following summarizes financial assets and liabilities measured at fair value, by level within the fair value hierarchy: September 30, 2019 March 31, 2019 Fair Value Fair Value Measurements Fair Value Fair Value Measurements Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets Short-term investments Mutual funds $ 2,192,000 $ 2,192,000 - - $ 3,273,000 $ 3,273,000 - - Prepaid expenses and other current assets Forward foreign currency exchange contracts - - - - 207,000 - $ 207,000 - Liabilities Accrued liabilities Short-term contingent consideration 2,721,000 - - $ 2,721,000 2,816,000 - - $ 2,816,000 Other current liabilities Deferred compensation 2,192,000 2,192,000 - - 3,273,000 3,273,000 - - Forward foreign currency exchange contracts 421,000 - $ 421,000 - - - - - Other liabilities Long-term contingent consideration 2,130,000 - - 2,130,000 1,905,000 - - 1,905,000 Short-term Investments and Deferred Compensation The Company’s short-term investments, which fund its deferred compensation liabilities, consist of investments in mutual funds. These investments are classified as Level 1 as the shares of these mutual funds trade with sufficient frequency and volume to enable the Company to obtain pricing information on an ongoing basis. Forward Foreign Currency Exchange Contracts The forward foreign currency exchange contracts are primarily measured based on the foreign currency spot and forward rates quoted by the banks or foreign currency dealers (See Note 13). Contingent Consideration In December 2018, the Company completed the acquisition of certain assets and assumption of certain liabilities from Mechanical Power Conversion, LLC (“E&M”). In connection with this acquisition, the Company is contingently obligated to make additional payments to the former owners of E&M up to an aggregate of $5,200,000 over the next three years. In January 2019, the Company completed the acquisition of all the equity interests of Dixie. In connection with this acquisition, the Company is contingently obligated to make additional payments to the former owners of Dixie up to $1,130,000 over the next two years. The Company’s contingent consideration is recorded in accrued expenses and other liabilities in its condensed consolidated balance sheets at September 30, 2019 and March 31, 2019, and is a Level 3 liability measured at fair value. E&M Research and Development (“R&D”) Event Milestone The fair value of the two-year R&D event milestone based on technology development and transfer was $2,270,000 at September 30, 2019 determined using a probability weighted method with the following assumptions commensurate with the term of the contingent consideration: (i) a risk-free interest rate ranging from 1.71% to 1.88%, (ii) counter party risk discount rate ranging from 5.71% to 5.88%, and (iii) total probability of 90% to 100%. Any subsequent changes in the fair value of the contingent consideration liability will be recorded in current period earnings as a general and administrative expense. E&M Gross Profit Earn-out Consideration The fair value of the three-year gross profit earn-out consideration was $1,950,000 at September 30, 2019 determined using a Monte Carlo Simulation Model. Any subsequent changes in the fair value of the contingent consideration liability will be recorded in current period earnings as a general and administrative expense. The assumptions used to determine the fair value is as follows: September 30, 2019 Risk free interest rate 1.61 % Counter party rate 5.61 % Expected volatility 28.00 % Weighted average cost of capital 15.50 % Dixie Revenue Earn-out Consideration The fair value of the two-year revenue earn-out consideration was $631,000 at September 30, 2019 determined using a Monte Carlo Simulation Model. The assumptions used to determine the fair value is as follows: September 30, 2019 Risk free interest rate 1.72 % Counter party rate 4.00 % Revenue volatility 8.00 % Revenue discount rate 5.00 % Weighted average cost of capital 13.90 % Any subsequent changes in the fair value of the contingent consideration liability will be recorded in current period earnings as a general and administrative expense. The following table summarizes the activity for financial assets and liabilities utilizing Level 3 fair value measurements: Contingent Consideration Three Months Ended Six Months Ended Beginning balance $ 4,970,000 $ 4,721,000 Changes in revaluations of contingent consideration included in earnings (119,000 ) 130,000 Ending balance $ 4,851,000 $ 4,851,000 During the three and six months ended September 30, 2019, the Company had no other significant measurements of assets or liabilities at fair value on a nonrecurring basis subsequent to their initial recognition. The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value due to the short-term nature of these instruments. The carrying amounts of the revolving loan, term loan and other long-term liabilities approximate their fair value based on the variable nature of interest rates and current rates for instruments with similar characteristics.

Share-based Payments

Share-based Payments	6 Months Ended
	Sep. 30, 2019
Share-based Payments [Abstract]
Share-based Payments	15. Share-based Payments Stock Options The Company granted options to purchase 300,039 and 245,400 shares of common stock during the six months ended September 30, 2019 and 2018, respectively. The cost associated with stock options is estimated using the Black-Scholes option-pricing model. This model requires the input of subjective assumptions including the expected volatility of the underlying stock and the expected holding period of the option. These subjective assumptions are based on both historical and other information. Changes in the values assumed and used in the model can materially affect the estimate of fair value. The following assumptions were used to derive the weighted average fair value of the stock options granted: Six Months Ended 2019 2018 Weighted average risk free interest rate 1.77 % 2.82 % Weighted average expected holding period (years) 5.70 5.94 Weighted average expected volatility 42.51 % 43.98 % Weighted average expected dividend yield - - Weighted average fair value of options granted $ 8.28 $ 8.71 The following is a summary of stock option transactions: Number of Weighted Average Outstanding at March 31, 2019 1,337,165 $ 17.58 Granted 300,039 $ 19.75 Exercised (52,800 ) $ 7.67 Forfeited (5,171 ) $ 20.62 Outstanding at September 30, 2019 1,579,233 $ 18.31 At September 30, 2019, options to purchase 522,677 shares of common stock were unvested at the weighted average exercise price of $20.37. At September 30, 2019, there was $4,037,000 of total unrecognized compensation expense related to unvested stock option awards. Compensation expense related to unvested stock option awards will be recognized over a weighted average vesting period of approximately 2.2 years. Restricted Stock Units and Restricted Stock (collectively “RSUs”) During the six months ended September 30, 2019 and 2018, the Company granted 79,851 and 78,400 shares of RSUs with an estimated grant date fair value of $1,591,000 and $1,490,000, respectively, which was based on the closing market price on the grant date. The following is a summary of non-vested RSUs: Number of Shares Weighted Average Grant Date Fair Value Outstanding at March 31, 2019 243,134 $ 21.75 Granted 79,851 $ 19.93 Vested (133,488 ) $ 21.11 Forfeited (1,101 ) $ 21.40 Outstanding at September 30, 2019 188,396 $ 21.44 At September 30, 2019, there was $3,175,000 of unrecognized compensation expense related to these awards, which will be recognized over the remaining vesting period of approximately 2.1 years.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Sep. 30, 2019
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Loss	16. Accumulated Other Comprehensive Loss The following summarizes changes in accumulated other comprehensive loss: Three Months Ended September 30, 2019 Three Months Ended September 30, 2018 Unrealized Gain on Short-Term Foreign Currency Total Unrealized Gain on Short-Term Foreign Currency Total Balance at June 30, 2019 and 2018 $ - $ (6,288,000 ) $ (6,288,000 ) $ - $ (6,889,000 ) $ (6,889,000 ) Other comprehensive loss, net of tax - (431,000 ) (431,000 ) - (2,000 ) (2,000 ) Amounts reclassified from accumulated other comprehensive loss, net of tax - - - - - - Balance at September 30, 2019 and 2018 $ - $ (6,719,000 ) $ (6,719,000 ) $ - $ (6,891,000 ) $ (6,891,000 ) Six Months Ended September 30, 2019 Six Months Ended September 30, 2018 Unrealized Gain on Short-Term Investments Foreign Currency Translation Total Unrealized Gain on Short-Term Investments Foreign Currency Translation Total Balance at March 31, 2019 and 2018 $ - $ (6,887,000 ) $ (6,887,000 ) $ 746,000 $ (6,174,000 ) $ (5,428,000 ) Cumulative-effect adjustment - - - (746,000 ) - (746,000 ) Balance at April 1, 2019 and 2018 - (6,887,000 ) (6,887,000 ) - (6,174,000 ) (6,174,000 ) Other comprehensive income (loss), net of tax - 168,000 168,000 - (717,000 ) (717,000 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax - - - - - - Balance at September 30, 2019 and 2018 $ - $ (6,719,000 ) $ (6,719,000 ) $ - $ (6,891,000 ) $ (6,891,000 )

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Sep. 30, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	17. Commitments and Contingencies Warranty Returns The Company allows its customers to return goods that their consumers have returned to them, whether or not the returned item is defective (“warranty returns”). The Company accrues an estimate of its exposure to warranty returns based on a historical analysis of the level of this type of return as a percentage of total unit sales. Amounts charged to expense for these warranty returns are considered in arriving at the Company’s net sales. The following summarizes the changes in the warranty return accrual: Three Months Ended Six Months Ended 2019 2018 2019 2018 Balance at beginning of period $ 15,818,000 $ 14,543,000 $ 19,475,000 $ 16,646,000 Charged to expense/additions 32,531,000 30,860,000 55,716,000 54,753,000 Amounts processed (31,774,000 ) (28,993,000 ) (58,616,000 ) (54,989,000 ) Balance at end of period $ 16,575,000 $ 16,410,000 $ 16,575,000 $ 16,410,000 Contingencies The Company is subject to various lawsuits and claims. In addition, government agencies and self-regulatory organizations have the ability to conduct periodic examinations of and administrative proceedings regarding the Company’s business. Following an audit in fiscal 2019, the U.S. Customs and Border Protection stated that it believed that the Company owed additional duties of approximately $17 million from 2011 through mid-2018 relating to products that it imported from Mexico. The Company does not believe that this amount is correct and believes that it has numerous defenses and intends to dispute this amount vigorously. The Company cannot assure that the U.S. Customs and Border Protection will agree or that it will not need to accrue or pay additional amounts in the future.

Basis of Presentation and New_2

Basis of Presentation and New Accounting Pronouncements (Policies)	6 Months Ended
	Sep. 30, 2019
Basis of Presentation and New Accounting Pronouncements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended September 30, 2019 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2020. This report should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto for the fiscal year ended March 31, 2019, which are included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on June 28, 2019. The accompanying condensed consolidated financial statements have been prepared on a consistent basis with, and there have been no material changes to, except as noted below, the accounting policies described in Note 3, Summary of Significant Accounting Policies, to the consolidated financial statements that are presented in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2019.
New Accounting Pronouncements Recently Adopted	New Accounting Pronouncements Recently Adopted Leases In February 2016, the FASB issued new guidance that requires balance sheet recognition of a lease asset and lease liability by lessees for all leases, other than leases with a term of 12 months or less if the short-term lease exclusion expedient is elected. The new guidance also requires new disclosures providing additional qualitative and quantitative information about the amounts recorded in the financial statements. The new guidance requires a modified retrospective approach with optional practical expedients. The FASB provided entities with an additional transition method, which allows an entity to apply this guidance as of the beginning of the period of adoption instead of the beginning of the earliest comparative period presented in the entity’s financial statements. The Company adopted this guidance on April 1, 2019 using the additional transition method. The Company also elected certain practical expedients permitted under the transition guidance, including the package of practical expedients, which allowed it not to reassess lease classification for leases that commenced prior to the adoption date. In addition, the Company elected to exempt leases with an initial term of 12 months or less from balance sheet recognition and, for all classes of assets, combining non-lease components with lease components. Upon adoption, the Company recorded operating lease liabilities of $53,043,000 and corresponding operating lease assets of $50,773,000. The difference between the operating lease assets and liabilities recognized on the Company’s condensed consolidated balance sheets primarily related to accrued rent on existing leases that were offset against the operating lease asset upon adoption. There was an immaterial reclassification of non-lease components to finance lease assets and finance lease liabilities upon adoption due to the Company’s election to combine non-lease components with lease components. The adoption of the new guidance did not have any impact on the Company’s rent expense and condensed consolidated statement of cash flows. However, the Company has material nonfunctional currency leases that could have a material impact on the Company’s condensed consolidated statements of operations. As required for other monetary liabilities, lessees shall remeasure a foreign currency-denominated lease liability using the exchange rate at each reporting date, but the lease assets are nonmonetary assets measured at historical rates, which are not affected by subsequent changes in the exchange rates. The Company recorded losses of $1,139,000 and $637,000 in general and administrative expenses in connection with the remeasurement of foreign currency-denominated lease liabilities during the three and six months ended September 30, 2019, respectively. See Note 9 for additional discussion of the adoption of ASC 842 and the impact on the Company’s financial statements.
New Accounting Pronouncements Not Yet Adopted	New Accounting Pronouncements Not Yet Adopted Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued an accounting pronouncement related to the measurement of credit losses on financial instruments. This pronouncement, along with a subsequent Accounting Standards Updates (“ASU”) issued to clarify certain provisions of the new guidance, changes the impairment model for most financial assets and will require the use of an “expected loss” model for instruments measured at amortized cost. Under this model, entities will be required to estimate the lifetime expected credit loss on such instruments and record an allowance to offset the amortized cost basis of the financial asset, resulting in a net presentation of the amount expected to be collected on the financial asset. This pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2019. The Company plans to adopt this pronouncement for its fiscal year beginning April 1, 2020. The Company is currently evaluating the impact this guidance will have on its consolidated financial statements, as well as any impacts on its business processes, systems and internal controls. Fair Value Measurements In August 2018, the FASB issued guidance , which changes the disclosure requirements for fair value measurements by removing, adding and modifying certain disclosures. The standard is effective for financial statements issued for fiscal years , and for interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact this guidance will have on its consolidated financial statements.

Accounts Receivable - Net (Tabl

Accounts Receivable - Net (Tables)	6 Months Ended
	Sep. 30, 2019
Accounts Receivable - Net [Abstract]
Accounts Receivable	Accounts receivable — net is comprised of the following: September 30, 2019 March 31, 2019 Accounts receivable — trade $ 86,974,000 $ 75,847,000 Allowance for bad debts (4,187,000 ) (4,100,000 ) Customer payment discrepancies (1,169,000 ) (854,000 ) Customer returns RGA issued (11,704,000 ) (14,878,000 ) Less: total accounts receivable offset accounts (17,060,000 ) (19,832,000 ) Total accounts receivable — net $ 69,914,000 $ 56,015,000

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Sep. 30, 2019
Inventory [Abstract]
Inventory Net	Inventory–net is comprised of the following: September 30, 2019 March 31, 2019 Inventory - net Raw materials $ 104,180,000 $ 95,757,000 Work-in-process 4,720,000 3,502,000 Finished goods 154,901,000 146,366,000 263,801,000 245,625,000 Less allowance for excess and obsolete inventory (13,134,000 ) (11,899,000 ) Total inventory - net $ 250,667,000 $ 233,726,000 Inventory unreturned $ 8,684,000 $ 8,469,000

Contract Assets (Tables)

Contract Assets (Tables)	6 Months Ended
	Sep. 30, 2019
Contract Assets [Abstract]
Contract Assets	Contract assets are comprised of the following: September 30, 2019 March 31, 2019 Short-term contract assets Cores expected to be returned by customers $ 11,776,000 $ 14,671,000 Upfront payments to customers 3,312,000 3,101,000 Core premiums paid to customers 4,383,000 4,411,000 Total short-term contract assets $ 19,471,000 $ 22,183,000 Long-term contract assets Remanufactured cores held at customers’ locations $ 203,024,000 $ 196,914,000 Upfront payments to customers 1,234,000 2,775,000 Core premiums paid to customers 14,502,000 16,618,000 Long-term core inventory deposits 5,569,000 5,569,000 Total long-term contract assets $ 224,329,000 $ 221,876,000

Significant Customer and Othe_2

Significant Customer and Other Information (Tables)	6 Months Ended
	Sep. 30, 2019
Significant Customer and Other Information [Abstract]
Concentrations of Risk	Significant Customer Concentrations The largest customers accounted for the following total percentage of net sales: Three Months Ended Six Months Ended 2019 2018 2019 2018 Net sales Customer A 41 % 39 % 40 % 38 % Customer B 20 % 26 % 21 % 24 % Customer C 23 % 20 % 22 % 22 % The largest customers accounted for the following total percentage of accounts receivable – trade: September 30, 2019 March 31, 2019 Accounts receivable - trade Customer A 33 % 34 % Customer B 15 % 18 % Customer C 23 % 16 % Geographic and Product Information The Company’s products are predominantly sold in the U.S. and accounted for the following total percentage of net sales: Three Months Ended Six Months Ended 2019 2018 2019 2018 Rotating electrical products 77 % 80 % 76 % 79 % Wheel hub products 15 % 14 % 16 % 16 % Brake caliper products 3 % - % 2 % - % Brake master cylinders products 1 % 2 % 2 % 2 % Other products 4 % 4 % 4 % 3 % 100 % 100 % 100 % 100 %

Debt (Tables)

Debt (Tables)	6 Months Ended
	Sep. 30, 2019
Debt [Abstract]
Information About the Term Loan	The following summarizes information about the Term Loans at: September 30, 2019 March 31, 2019 Principal amount of term loan $ 26,250,000 $ 28,125,000 Unamortized financing fees (273,000 ) (253,000 ) Net carrying amount of term loan 25,977,000 27,872,000 Less current portion of term loan (3,678,000 ) (3,685,000 ) Long-term portion of term loan $ 22,299,000 $ 24,187,000
Future Repayments of the Amended Term Loan, by Fiscal Year	Future repayments of the Term Loans are as follows: Year Ending March 31, 2020 - remaining six months $ 1,875,000 2021 3,750,000 2022 3,750,000 2023 3,750,000 2024 13,125,000 Total payments $ 26,250,000

Contract Liabilities (Tables)

Contract Liabilities (Tables)	6 Months Ended
	Sep. 30, 2019
Contract Liabilities [Abstract]
Contract Liabilities	Contract liabilities are comprised of the following: September 30, 2019 March 31, 2019 Short-term contract liabilities Customer allowances earned $ 10,365,000 $ 12,755,000 Customer core returns accruals 3,973,000 3,933,000 Customer deposits 1,377,000 2,674,000 Accrued core payment, net 8,349,000 11,237,000 Total short-term contract liabilities $ 24,064,000 $ 30,599,000 Long-term contract liabilities Customer core returns accruals $ 38,841,000 $ 25,722,000 Accrued core payment, net 10,486,000 15,167,000 Total long-term contract liabilities $ 49,327,000 $ 40,889,000

Leases (Tables)

Leases (Tables)	6 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Balance Sheet Information for Leases	Balance sheet information for leases is as follows: September 30, 2019 Leases Classification Assets: Operating Operating lease assets $ 49,262,000 Finance Plant and equipment 7,079,000 Total leased assets $ 56,341,000 Liabilities: Current Operating Operating lease liabilities $ 4,487,000 Finance Other current liabilities 2,036,000 Long-term Operating Long-term operating lease liabilities 47,925,000 Finance Other liabilities 4,149,000 Total lease liabilities $ 58,597,000
Lease Cost Recognized in Consolidated Statement of Operations	Lease cost recognized in the condensed consolidated statement of operations is as follows: Three Months Ended Six Months Ended 2019 2019 Lease cost Operating lease cost $ 1,987,000 $ 3,885,000 Short-term lease cost 295,000 698,000 Variable lease cost 157,000 287,000 Finance lease cost: Amortization of finance lease assets 372,000 730,000 Interest on finance lease liabilities 73,000 141,000 Total lease cost $ 2,884,000 $ 5,741,000
Maturity of Lease Commitments	Maturities of lease commitments at September 30, 2019 were as follows: Maturity of lease liabilities Operating Leases Finance Leases Total 2020 - remaining six months $ 3,799,000 $ 1,172,000 $ 4,971,000 2021 6,957,000 2,074,000 9,031,000 2022 6,168,000 1,740,000 7,908,000 2023 4,968,000 1,131,000 6,099,000 2024 4,866,000 472,000 5,338,000 Thereafter 47,268,000 113,000 47,381,000 Total lease payments 74,026,000 6,702,000 80,728,000 Less amount representing interest (21,614,000 ) (517,000 ) (22,131,000 ) Present value of lease liabilities $ 52,412,000 $ 6,185,000 $ 58,597,000
Other Information about Leases	Other information about leases is as follows: Six Months Ended September 30, Lease term and discount rate Weighted-average remaining lease term (years): Finance leases 3.4 Operating leases 12.0 Weighted-average discount rate: Finance leases 4.8 % Operating leases 5.6 %

Accounts Receivable Discount _2

Accounts Receivable Discount Programs (Tables)	6 Months Ended
	Sep. 30, 2019
Accounts Receivable Discount Programs [Abstract]
Accounts Receivable Discount Programs	The following is a summary of accounts receivable discount programs: Six Months Ended 2019 2018 Receivables discounted $ 205,882,000 $ 191,849,000 Weighted average days 346 338 Annualized weighted average discount rate 3.6 % 4.1 % Amount of discount recognized as interest expense $ 7,196,000 $ 7,441,000

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Sep. 30, 2019
Net Income (Loss) Per Share [Abstract]
Reconciliation of Basic and Diluted Net Income (Loss) Per Share	The following presents a reconciliation of basic and diluted net income (loss) per share: Three Months Ended Six Months Ended 2019 2018 2019 2018 Net income (loss) $ 6,189,000 $ 3,513,000 $ 38,000 $ (1,982,000 ) Basic shares 18,903,182 18,878,674 18,862,901 18,887,214 Effect of potentially dilutive securities 314,145 440,791 383,698 - Diluted shares 19,217,327 19,319,465 19,246,599 18,887,214 Net income (loss) per share: Basic net income (loss) per share $ 0.33 $ 0.19 $ 0.00 $ (0.10 ) Diluted net income (loss) per share $ 0.32 $ 0.18 $ 0.00 $ (0.10 )

Financial Risk Management and_2

Financial Risk Management and Derivatives (Tables)	6 Months Ended
	Sep. 30, 2019
Financial Risk Management and Derivatives [Abstract]
Derivative Instruments on Consolidated Statements of Operations	The following shows the effect of derivative instruments on the condensed consolidated statements of operations: Derivatives Not Designated as Hedging Instruments Gain (Loss) Recognized within General and Administrative Expenses Three Months Ended Six Months Ended 2019 2018 2019 2018 Forward foreign currency exchange contracts $ (663,000 ) $ 1,898,000 $ (628,000 ) $ (768,000 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Sep. 30, 2019
Fair Value Measurements [Abstract]
Financial Assets and Liabilities Measured at Fair Value Recurring Basis	The following summarizes financial assets and liabilities measured at fair value, by level within the fair value hierarchy: September 30, 2019 March 31, 2019 Fair Value Fair Value Measurements Fair Value Fair Value Measurements Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets Short-term investments Mutual funds $ 2,192,000 $ 2,192,000 - - $ 3,273,000 $ 3,273,000 - - Prepaid expenses and other current assets Forward foreign currency exchange contracts - - - - 207,000 - $ 207,000 - Liabilities Accrued liabilities Short-term contingent consideration 2,721,000 - - $ 2,721,000 2,816,000 - - $ 2,816,000 Other current liabilities Deferred compensation 2,192,000 2,192,000 - - 3,273,000 3,273,000 - - Forward foreign currency exchange contracts 421,000 - $ 421,000 - - - - - Other liabilities Long-term contingent consideration 2,130,000 - - 2,130,000 1,905,000 - - 1,905,000
Assumptions Used to Determine Fair Value of Contingent Consideration	The assumptions used to determine the fair value is as follows: September 30, 2019 Risk free interest rate 1.61 % Counter party rate 5.61 % Expected volatility 28.00 % Weighted average cost of capital 15.50 % Dixie Revenue Earn-out Consideration The fair value of the two-year revenue earn-out consideration was $631,000 at September 30, 2019 determined using a Monte Carlo Simulation Model. The assumptions used to determine the fair value is as follows: September 30, 2019 Risk free interest rate 1.72 % Counter party rate 4.00 % Revenue volatility 8.00 % Revenue discount rate 5.00 % Weighted average cost of capital 13.90 %
Change in Warrant Liability Measured at Fair Value Recurring Basis Using Significant Unobservable Inputs (Level 3)	The following table summarizes the activity for financial assets and liabilities utilizing Level 3 fair value measurements: Contingent Consideration Three Months Ended Six Months Ended Beginning balance $ 4,970,000 $ 4,721,000 Changes in revaluations of contingent consideration included in earnings (119,000 ) 130,000 Ending balance $ 4,851,000 $ 4,851,000

Share-based Payments (Tables)

Share-based Payments (Tables)	6 Months Ended
	Sep. 30, 2019
Share-based Payments [Abstract]
Black-Scholes Option Pricing Model Assumptions used to Derive Weighted Average Fair Value of Stock Options Granted	The following assumptions were used to derive the weighted average fair value of the stock options granted: Six Months Ended 2019 2018 Weighted average risk free interest rate 1.77 % 2.82 % Weighted average expected holding period (years) 5.70 5.94 Weighted average expected volatility 42.51 % 43.98 % Weighted average expected dividend yield - - Weighted average fair value of options granted $ 8.28 $ 8.71
Stock Option Transactions	The following is a summary of stock option transactions: Number of Weighted Average Outstanding at March 31, 2019 1,337,165 $ 17.58 Granted 300,039 $ 19.75 Exercised (52,800 ) $ 7.67 Forfeited (5,171 ) $ 20.62 Outstanding at September 30, 2019 1,579,233 $ 18.31
Restricted Stock Units Activity	The following is a summary of non-vested RSUs: Number of Shares Weighted Average Grant Date Fair Value Outstanding at March 31, 2019 243,134 $ 21.75 Granted 79,851 $ 19.93 Vested (133,488 ) $ 21.11 Forfeited (1,101 ) $ 21.40 Outstanding at September 30, 2019 188,396 $ 21.44

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Sep. 30, 2019
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Loss	The following summarizes changes in accumulated other comprehensive loss: Three Months Ended September 30, 2019 Three Months Ended September 30, 2018 Unrealized Gain on Short-Term Foreign Currency Total Unrealized Gain on Short-Term Foreign Currency Total Balance at June 30, 2019 and 2018 $ - $ (6,288,000 ) $ (6,288,000 ) $ - $ (6,889,000 ) $ (6,889,000 ) Other comprehensive loss, net of tax - (431,000 ) (431,000 ) - (2,000 ) (2,000 ) Amounts reclassified from accumulated other comprehensive loss, net of tax - - - - - - Balance at September 30, 2019 and 2018 $ - $ (6,719,000 ) $ (6,719,000 ) $ - $ (6,891,000 ) $ (6,891,000 ) Six Months Ended September 30, 2019 Six Months Ended September 30, 2018 Unrealized Gain on Short-Term Investments Foreign Currency Translation Total Unrealized Gain on Short-Term Investments Foreign Currency Translation Total Balance at March 31, 2019 and 2018 $ - $ (6,887,000 ) $ (6,887,000 ) $ 746,000 $ (6,174,000 ) $ (5,428,000 ) Cumulative-effect adjustment - - - (746,000 ) - (746,000 ) Balance at April 1, 2019 and 2018 - (6,887,000 ) (6,887,000 ) - (6,174,000 ) (6,174,000 ) Other comprehensive income (loss), net of tax - 168,000 168,000 - (717,000 ) (717,000 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax - - - - - - Balance at September 30, 2019 and 2018 $ - $ (6,719,000 ) $ (6,719,000 ) $ - $ (6,891,000 ) $ (6,891,000 )

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Sep. 30, 2019
Commitments and Contingencies [Abstract]
Changes in Warranty Return Accrual	The following summarizes the changes in the warranty return accrual: Three Months Ended Six Months Ended 2019 2018 2019 2018 Balance at beginning of period $ 15,818,000 $ 14,543,000 $ 19,475,000 $ 16,646,000 Charged to expense/additions 32,531,000 30,860,000 55,716,000 54,753,000 Amounts processed (31,774,000 ) (28,993,000 ) (58,616,000 ) (54,989,000 ) Balance at end of period $ 16,575,000 $ 16,410,000 $ 16,575,000 $ 16,410,000

Company Background and Organi_2

Company Background and Organization (Details)	6 Months Ended
	Sep. 30, 2019Segment
Company Background and Organization [Abstract]
Number of operating segments	3
Number of Reportable Segments	1

Basis of Presentation and New_3

Basis of Presentation and New Accounting Pronouncements (Details) - USD ($)	3 Months Ended	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
New Accounting Pronouncements Recently Adopted [Abstract]
Operating lease liabilities	$ 52,412,000	$ 52,412,000
Operating lease assets	49,262,000	49,262,000		$ 0
(Loss) in foreign currency-denominated lease liabilities	$ (1,139,000)	$ (637,000)	$ 0
ASU 2016-02 [Member]
New Accounting Pronouncements Recently Adopted [Abstract]
Operating lease liabilities				53,043,000
Operating lease assets				$ 50,773,000

Accounts Receivable - Net (Deta

Accounts Receivable - Net (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Accounts Receivable - Net [Abstract]
Accounts receivable - trade	$ 86,974,000	$ 75,847,000
Allowance for bad debts	(4,187,000)	(4,100,000)
Customer payment discrepancies	(1,169,000)	(854,000)
Customer returns RGA issued	(11,704,000)	(14,878,000)
Less: total accounts receivable offset accounts	(17,060,000)	(19,832,000)
Total accounts receivable - net	$ 69,914,000	$ 56,015,000

Inventory (Details)

Inventory (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Inventory - net [Abstract]
Raw materials	$ 104,180,000	$ 95,757,000
Work in process	4,720,000	3,502,000
Finished goods	154,901,000	146,366,000
Inventory, gross	263,801,000	245,625,000
Less allowance for excess and obsolete inventory	(13,134,000)	(11,899,000)
Total inventory - net	250,667,000	233,726,000
Inventory unreturned	$ 8,684,000	$ 8,469,000

Contract Assets (Details)

Contract Assets (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Short-term contract assets [Abstract]
Cores expected to be returned by customers	$ 11,776,000	$ 14,671,000
Upfront payments to customers	3,312,000	3,101,000
Core premiums paid to customers	4,383,000	4,411,000
Total short-term contract assets	19,471,000	22,183,000
Long-term contract assets [Abstract]
Remanufactured cores held at customers' locations	203,024,000	196,914,000
Upfront payments to customers	1,234,000	2,775,000
Core premiums paid to customers	14,502,000	16,618,000
Long-term core inventory deposits	5,569,000	5,569,000
Total long-term contract assets	$ 224,329,000	$ 221,876,000

Significant Customer and Othe_3

Significant Customer and Other Information (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
Net Sales [Member]
Concentration Risk [Abstract]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Net Sales [Member] | Customer A [Member]
Concentration Risk [Abstract]
Concentration risk percentage	41.00%	39.00%	40.00%	38.00%
Net Sales [Member] | Customer B [Member]
Concentration Risk [Abstract]
Concentration risk percentage	20.00%	26.00%	21.00%	24.00%
Net Sales [Member] | Customer C [Member]
Concentration Risk [Abstract]
Concentration risk percentage	23.00%	20.00%	22.00%	22.00%
Net Sales [Member] | Rotating Electrical Products [Member]
Concentration Risk [Abstract]
Concentration risk percentage	77.00%	80.00%	76.00%	79.00%
Net Sales [Member] | Wheel Hub Products [Member]
Concentration Risk [Abstract]
Concentration risk percentage	15.00%	14.00%	16.00%	16.00%
Net Sales [Member] | Brake Caliper Products [Member]
Concentration Risk [Abstract]
Concentration risk percentage	3.00%	0.00%	2.00%	0.00%
Net Sales [Member] | Brake Master Cylinders Products [Member]
Concentration Risk [Abstract]
Concentration risk percentage	1.00%	2.00%	2.00%	2.00%
Net Sales [Member] | Other Products [Member]
Concentration Risk [Abstract]
Concentration risk percentage	4.00%	4.00%	4.00%	3.00%
Accounts Receivable - Trade [Member] | Customer A [Member]
Concentration Risk [Abstract]
Concentration risk percentage			33.00%		34.00%
Accounts Receivable - Trade [Member] | Customer B [Member]
Concentration Risk [Abstract]
Concentration risk percentage			15.00%		18.00%
Accounts Receivable - Trade [Member] | Customer C [Member]
Concentration Risk [Abstract]
Concentration risk percentage			23.00%		16.00%

Debt (Details)

Debt (Details) - USD ($)	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
Amended Credit Facility [Abstract]
Debt issuance costs	$ 901,000	$ 1,757,000
Summarized information about the term loan [Abstract]
Less current portion of term loan	(3,678,000)		$ (3,685,000)
Long-term portion of term loan	$ 22,299,000		$ 24,187,000
Revolving Facility [Member]
Amended Credit Facility [Abstract]
Interest rate at end of period	4.84%		5.24%
Term Loans [Member]
Amended Credit Facility [Abstract]
Quarterly principal payments	$ 937,500
Interest rate at end of period	4.86%		5.24%
Summarized information about the term loan [Abstract]
Principal amount of term loan	$ 26,250,000		$ 28,125,000
Unamortized financing fees	(273,000)		(253,000)
Net carrying amount of term loan	25,977,000		27,872,000
Less current portion of term loan	(3,678,000)		(3,685,000)
Long-term portion of term loan	22,299,000		24,187,000
Future repayments of the Term Loan, by fiscal year [Abstract]
2020 - remaining six months	1,875,000
2021	3,750,000
2022	3,750,000
2023	3,750,000
2024	13,125,000
Total payments	26,250,000		28,125,000
Second Amended Credit Facility [Member]
Amended Credit Facility [Abstract]
Debt issuance costs	901,000
Second Amended Credit Facility [Member] | Maximum [Member]
Amended Credit Facility [Abstract]
Maximum sale and lease back transactions	5,000,000
Second Amended Credit Facility [Member] | Revolving Facility [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	238,620,000
Second Amended Credit Facility [Member] | Revolving Facility [Member] | Canadian Borrowers [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	24,000,000
Second Amended Credit Facility [Member] | Revolving Facility [Member] | Letters of Credit [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	20,000,000
Second Amended Credit Facility [Member] | Revolving Facility [Member] | Swing Line Sublimit [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	23,862,000
Credit Facility [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	$ 230,000,000
Debt instrument, maturity date	Jun. 5, 2023
Credit Facility [Member] | Minimum [Member]
Amended Credit Facility [Abstract]
Facility fee on total leverage ratio	0.375%
Credit Facility [Member] | Maximum [Member]
Amended Credit Facility [Abstract]
Dividend payments and share repurchases, annual maximum amount permitted	$ 20,000,000
Facility fee on total leverage ratio	0.50%
Credit Facility [Member] | LIBOR [Member]
Amended Credit Facility [Abstract]
Reference interest rate under option 1, floor	2.25%
Interest rate over LIBOR rate under option 1	2.50%
Interest rate above base rate under option 2	2.75%
Credit Facility [Member] | Reference Rate [Member]
Amended Credit Facility [Abstract]
Reference interest rate under option 1, floor	1.25%
Interest rate over LIBOR rate under option 1	1.50%
Interest rate above base rate under option 2	1.75%
Credit Facility [Member] | Revolving Facility [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	$ 200,000,000
Outstanding balance under revolving loan	144,000,000		$ 110,400,000
Amount available under revolving facility	74,029,000
Credit Facility [Member] | Revolving Facility [Member] | Canadian Borrowers [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	20,000,000
Credit Facility [Member] | Revolving Facility [Member] | Letters of Credit [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	15,000,000
Outstanding balance under revolving loan	4,039,000
Credit Facility [Member] | Term Loans [Member]
Amended Credit Facility [Abstract]
Maximum borrowing capacity	$ 30,000,000

Contract Liabilities (Details)

Contract Liabilities (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Short-term contract liabilities [Abstract]
Customer allowances earned	$ 10,365,000	$ 12,755,000
Customer core returns accruals	3,973,000	3,933,000
Customer deposits	1,377,000	2,674,000
Accrued core payment, net	8,349,000	11,237,000
Total short-term contract liabilities	24,064,000	30,599,000
Long-term contract liabilities [Abstract]
Customer core returns accruals	38,841,000	25,722,000
Accrued core payment, net	10,486,000	15,167,000
Total long-term contract liabilities	$ 49,327,000	$ 40,889,000

Leases, General Information (De

Leases, General Information (Details)	6 Months Ended
	Sep. 30, 2019USD ($)Building
Maximum [Member]
Leases [Abstract]
Option to extend, term	5 years
Office and Manufacturing Equipment [Member] | Minimum [Member]
Leases [Abstract]
Finance leases term	3 years
Office and Manufacturing Equipment [Member] | Maximum [Member]
Leases [Abstract]
Finance leases term	5 years
Mexico [Member]
Leases [Abstract]
Number of new buildings under lease | Building	2
Lease term, lease not yet commenced	15 years
Lease payments, lease not yet commenced | $	$ 25,542,000

Leases, Balance Sheet Informati

Leases, Balance Sheet Information (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019
Assets: [Abstract]
Operating, Operating lease assets	$ 49,262,000	$ 0
Finance, Plant and equipment	7,079,000
Total leased assets	56,341,000
Current [Abstract]
Operating, Operating lease liabilities	4,487,000	0
Finance, Other current liabilities	2,036,000
Long-term [Abstract]
Operating, Long-term operating lease liabilities	47,925,000	$ 0
Finance, Other liabilities	4,149,000
Total lease liabilities	$ 58,597,000

Leases, Cost Recogized in Conso

Leases, Cost Recogized in Consolidated Statement of Operations (Details) - USD ($)	3 Months Ended	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Lease cost [Abstract]
Operating lease cost	$ 1,987,000	$ 3,885,000
Short-term lease cost	295,000	698,000
Variable lease cost	157,000	287,000
Finance lease cost: [Abstract]
Amortization of finance lease assets	372,000	730,000
Interest on finance lease liabilities	73,000	141,000
Total lease cost	$ 2,884,000	$ 5,741,000

Leases, Maturities of Lease Com

Leases, Maturities of Lease Commitments (Details)	Sep. 30, 2019USD ($)
Operating Leases [Abstract]
2020 - remaining six months	$ 3,799,000
2021	6,957,000
2022	6,168,000
2023	4,968,000
2024	4,866,000
Thereafter	47,268,000
Total lease payments	74,026,000
Less amount representing interest	(21,614,000)
Present value of lease liabilities	52,412,000
Finance Leases [Abstract]
2020 - remaining six months	1,172,000
2021	2,074,000
2022	1,740,000
2023	1,131,000
2024	472,000
Thereafter	113,000
Total lease payments	6,702,000
Less amount representing interest	(517,000)
Present value of lease liabilities	6,185,000
Total [Abstract]
2020 - remaining six months	4,971,000
2021	9,031,000
2022	7,908,000
2023	6,099,000
2024	5,338,000
Thereafter	47,381,000
Total lease payments	80,728,000
Less amount representing interest	(22,131,000)
Present value of lease liabilities	$ 58,597,000

Leases, Other Information (Deta

Leases, Other Information (Details)	Sep. 30, 2019
Weighted-average remaining lease term (years): [Abstract]
Finance leases	3 years 4 months 24 days
Operating leases	12 years
Weighted-average discount rate: [Abstract]
Finance leases	4.80%
Operating leases	5.60%

Accounts Receivable Discount _3

Accounts Receivable Discount Programs (Details) - USD ($)	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Accounts Receivable Discount Programs [Abstract]
Receivables discounted	$ 205,882,000	$ 191,849,000
Weighted average days	346 days	338 days
Annualized weighted average discount rate	3.60%	4.10%
Amount of discount recognized as interest expense	$ 7,196,000	$ 7,441,000

Net Income (Loss) Per Share (De

Net Income (Loss) Per Share (Details) - USD ($)	3 Months Ended				6 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Reconciliation of basic and diluted net income (loss) per share [Abstract]
Net income (loss)	$ 6,189,000	$ (6,151,000)	$ 3,513,000	$ (5,495,000)	$ 38,000	$ (1,982,000)
Basic shares (in shares)	18,903,182		18,878,674		18,862,901	18,887,214
Effect of potentially dilutive securities (in shares)	314,145		440,791		383,698	0
Diluted shares (in shares)	19,217,327		19,319,465		19,246,599	18,887,214
Net income (loss) per share:
Basic net income (loss) per share (in dollars per share)	$ 0.33		$ 0.19		$ 0	$ (0.10)
Diluted net income (loss) per share (in dollars per share)	$ 0.32		$ 0.18		$ 0	$ (0.10)
Options [Member]
Antidilutive Securities [Abstract]
Antidilutive shares excluded from computation of earnings per share (in shares)	1,221,744		746,094		1,166,432	1,504,794

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Taxes [Abstract]
Income tax expense (benefit)	$ 1,980,000	$ 1,181,000	$ 250,000	$ (266,000)
Effective income tax rate	24.20%	25.20%	86.80%	11.80%

Financial Risk Management and_3

Financial Risk Management and Derivatives (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
Foreign Currency Exchange Contracts [Abstract]
Forward foreign currency exchange contracts included in other current liability	$ 421,000		$ 421,000
Forward foreign currency exchange contracts included in prepaid and other current assets					$ 207,000
Forward Foreign Currency Exchange Contracts [Member]
Foreign Currency Exchange Contracts [Abstract]
Notional amount of foreign currency derivatives	36,791,000		36,791,000		$ 32,524,000
Forward Foreign Currency Exchange Contracts [Member] | General and Administrative Expenses [Member]
Foreign Currency Exchange Contracts [Abstract]
Forward foreign currency exchange contracts	$ (663,000)	$ 1,898,000	$ (628,000)	$ (768,000)
Forward Foreign Currency Exchange Contracts [Member] | Maximum [Member]
Foreign Currency Exchange Contracts [Abstract]
Derivative, term of contract					1 year

Fair Value Measurements (Detail

Fair Value Measurements (Details)	3 Months Ended	6 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Jan. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Contingent Consideration [Member]
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Roll Forward]
Beginning balance	$ 4,970,000	$ 4,721,000
Changes in revaluation of contingent consideration included in earnings	(119,000)	130,000
Ending balance	4,851,000	4,851,000
Recurring [Member]
Short-term investments [Abstract]
Mutual funds	2,192,000	2,192,000	$ 3,273,000
Prepaid expenses and other current assets [Abstract]
Forward foreign currency exchange contracts	0	0	207,000
Accrued liabilities [Abstract]
Short-term contingent consideration	2,721,000	2,721,000	2,816,000
Other current liabilities [Abstract]
Deferred compensation	2,192,000	2,192,000	3,273,000
Forward foreign currency exchange contracts	421,000	421,000	0
Other liabilities [Abstract]
Long-term contingent consideration	2,130,000	2,130,000	1,905,000
Recurring [Member] | Level 1 [Member]
Short-term investments [Abstract]
Mutual funds	2,192,000	2,192,000	3,273,000
Prepaid expenses and other current assets [Abstract]
Forward foreign currency exchange contracts	0	0	0
Accrued liabilities [Abstract]
Short-term contingent consideration	0	0	0
Other current liabilities [Abstract]
Deferred compensation	2,192,000	2,192,000	3,273,000
Forward foreign currency exchange contracts	0	0	0
Other liabilities [Abstract]
Long-term contingent consideration	0	0	0
Recurring [Member] | Level 2 [Member]
Short-term investments [Abstract]
Mutual funds	0	0	0
Prepaid expenses and other current assets [Abstract]
Forward foreign currency exchange contracts	0	0	207,000
Accrued liabilities [Abstract]
Short-term contingent consideration	0	0	0
Other current liabilities [Abstract]
Deferred compensation	0	0	0
Forward foreign currency exchange contracts	421,000	421,000	0
Other liabilities [Abstract]
Long-term contingent consideration	0	0	0
Recurring [Member] | Level 3 [Member]
Short-term investments [Abstract]
Mutual funds	0	0	0
Prepaid expenses and other current assets [Abstract]
Forward foreign currency exchange contracts	0	0	0
Accrued liabilities [Abstract]
Short-term contingent consideration	2,721,000	2,721,000	2,816,000
Other current liabilities [Abstract]
Deferred compensation	0	0	0
Forward foreign currency exchange contracts	0	0	0
Other liabilities [Abstract]
Long-term contingent consideration	$ 2,130,000	$ 2,130,000	$ 1,905,000
Two-year R&D Milestone Event [Member] | Risk Free Interest Rate [Member] | Minimum [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0171	0.0171
Two-year R&D Milestone Event [Member] | Risk Free Interest Rate [Member] | Maximum [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0188	0.0188
Two-year R&D Milestone Event [Member] | Counter Party Rate [Member] | Minimum [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0571	0.0571
Two-year R&D Milestone Event [Member] | Counter Party Rate [Member] | Maximum [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0588	0.0588
Two-year R&D Milestone Event [Member] | Probability [Member] | Minimum [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.9	0.9
Two-year R&D Milestone Event [Member] | Probability [Member] | Maximum [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	1	1
Gross Profit Earn-out Consideration [Member] | Risk Free Interest Rate [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0161	0.0161
Gross Profit Earn-out Consideration [Member] | Counter Party Rate [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0561	0.0561
Gross Profit Earn-out Consideration [Member] | Expected Volatility [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.2800	0.2800
Gross Profit Earn-out Consideration [Member] | Weighted Average Cost of Capital [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.1550	0.1550
Revenue Earn-out Consideration [Member] | Risk Free Interest Rate [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0172	0.0172
Revenue Earn-out Consideration [Member] | Counter Party Rate [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0400	0.0400
Revenue Earn-out Consideration [Member] | Revenue Volatility [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0800	0.0800
Revenue Earn-out Consideration [Member] | Revenue Discount Rate [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.0500	0.0500
Revenue Earn-out Consideration [Member] | Weighted Average Cost of Capital [Member]
Fair Value Assumptions [Abstract]
Assumptions for fair value of contingent consideration	0.1390	0.1390
Mechanical Power Conversion, LLC [Member]
Contingent Consideration [Abstract]
Aggregate contingent consideration obligation					$ 5,200,000
Contingent consideration payment period		3 years
Mechanical Power Conversion, LLC [Member] | Two-year R&D Milestone Event [Member]
Contingent Consideration [Abstract]
Fair value of contingent consideration obligations	$ 2,270,000	$ 2,270,000
Term of R&D event milestone		2 years
Mechanical Power Conversion, LLC [Member] | Gross Profit Earn-out Consideration [Member]
Contingent Consideration [Abstract]
Fair value of contingent consideration obligations	1,950,000	$ 1,950,000
Term of gross profit earn-out arrangement		3 years
Dixie Electric, Ltd [Member]
Contingent Consideration [Abstract]
Contingent consideration payment period		2 years
Dixie Electric, Ltd [Member] | Maximum [Member]
Contingent Consideration [Abstract]
Aggregate contingent consideration obligation				$ 1,130,000
Dixie Electric, Ltd [Member] | Revenue Earn-out Consideration [Member]
Contingent Consideration [Abstract]
Fair value of contingent consideration obligations	$ 631,000	$ 631,000
Term of revenue earn-out arrangement		2 years

Share-based Payments - Stock Op

Share-based Payments - Stock Options Activity (Details) - Stock Options [Member]	6 Months Ended
	Sep. 30, 2019USD ($)$ / sharesshares	Sep. 30, 2018$ / sharesshares
Black-Scholes option pricing model assumptions used to derive weighted average fair value of stock options granted [Abstract]
Weighted average risk free interest rate	1.77%	2.82%
Weighted average expected holding period	5 years 8 months 12 days	5 years 11 months 8 days
Weighted average expected volatility	42.51%	43.98%
Weighted average expected dividend yield	0.00%	0.00%
Weighted average fair value of options granted (in dollars per share)	$ 8.28	$ 8.71
Number of Shares [Roll Forward]
Outstanding at beginning of period (in shares) | shares	1,337,165
Granted (in shares) | shares	300,039	245,400
Exercised (in shares) | shares	(52,800)
Forfeited (in shares) | shares	(5,171)
Outstanding at end of period (in shares) | shares	1,579,233
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of period (in dollars per share)	$ 17.58
Granted (in dollars per share)	19.75
Exercised (in dollars per share)	7.67
Forfeited (in dollars per share)	20.62
Outstanding at end of period (in dollars per share)	$ 18.31
Number of stock options unvested (in shares) | shares	522,677
Weighted average exercise price of stock options unvested (in dollars per share)	$ 20.37
Total unrecognized compensation expense | $	$ 4,037,000
Weighted average vesting period over which compensation expense is expected to be recognized	2 years 2 months 12 days

Share-based Payments - Restrict

Share-based Payments - Restricted Stock Units (Details) - Restricted Stock [Member] - USD ($)	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Number of Shares [Roll Forward]
Non-vested at beginning of period (in shares)	243,134
Granted (in shares)	79,851	78,400
Vested (in shares)	(133,488)
Forfeited (in shares)	(1,101)
Non-vested at end of period (in shares)	188,396
Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested at beginning of period (in dollars per share)	$ 21.75
Granted (in dollars per share)	19.93
Vested (in dollars per share)	21.11
Forfeited (in dollars per share)	21.40
Non-vested at end of period (in dollars per share)	$ 21.44
Estimated fair value of awards granted	$ 1,591,000	$ 1,490,000
Total unrecognized compensation expense	$ 3,175,000
Weighted average vesting period over which compensation expense is expected to be recognized	2 years 1 month 6 days

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income [Abstract]
Beginning balance	$ 274,829,000	$ 281,419,000	$ 279,755,000	$ 286,880,000
Adjusted beginning balance				286,880,000
Other comprehensive income (loss), net of tax	(431,000)	(2,000)	168,000	(717,000)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0
Ending balance	281,345,000	282,164,000	281,345,000	282,164,000
ASU 2016-01 [Member]
Accumulated Other Comprehensive Income [Abstract]
Cumulative-effect adjustment					$ 0	$ 0
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income [Abstract]
Beginning balance	(6,288,000)	(6,889,000)	(6,887,000)	(5,428,000)
Adjusted beginning balance			(6,887,000)	(6,174,000)
Ending balance	(6,719,000)	(6,891,000)	(6,719,000)	(6,891,000)
AOCI Attributable to Parent [Member] | ASU 2016-01 [Member]
Accumulated Other Comprehensive Income [Abstract]
Cumulative-effect adjustment						(746,000)
Unrealized Gain on Short-Term Investments [Member]
Accumulated Other Comprehensive Income [Abstract]
Beginning balance	0	0	0	746,000
Adjusted beginning balance			0	0
Other comprehensive income (loss), net of tax	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0
Ending balance	0	0	0	0
Unrealized Gain on Short-Term Investments [Member] | ASU 2016-01 [Member]
Accumulated Other Comprehensive Income [Abstract]
Cumulative-effect adjustment					0	(746,000)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income [Abstract]
Beginning balance	(6,288,000)	(6,889,000)	(6,887,000)	(6,174,000)
Adjusted beginning balance			(6,887,000)	(6,174,000)
Other comprehensive income (loss), net of tax	(431,000)	(2,000)	168,000	(717,000)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0
Ending balance	$ (6,719,000)	$ (6,891,000)	$ (6,719,000)	$ (6,891,000)
Foreign Currency Translation [Member] | ASU 2016-01 [Member]
Accumulated Other Comprehensive Income [Abstract]
Cumulative-effect adjustment					$ 0	$ 0

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Change in warranty return accrual [Roll Forward]
Balance at beginning of period	$ 15,818,000	$ 14,543,000	$ 19,475,000	$ 16,646,000
Charged to expense/additions	32,531,000	30,860,000	55,716,000	54,753,000
Amounts processed	(31,774,000)	(28,993,000)	(58,616,000)	(54,989,000)
Balance at end of period	16,575,000	$ 16,410,000	16,575,000	$ 16,410,000
Contingencies [Abstract]
Estimated additional import duties	$ 17,000,000		$ 17,000,000