Acquisitions (Details) $ / shares in Units, € in Thousands, $ in Thousands				3 Months Ended								12 Months Ended
	Apr. 01, 2018 USD ($)	Apr. 18, 2017 USD ($)	Sep. 01, 2015 USD ($) Rate	Feb. 28, 2018 USD ($) $ / shares	Nov. 30, 2017 USD ($) $ / shares	Aug. 31, 2017 USD ($) $ / shares	May 31, 2017 USD ($) $ / shares	Feb. 28, 2017 USD ($) $ / shares	Nov. 30, 2016 USD ($) $ / shares	Aug. 31, 2016 USD ($) $ / shares	May 31, 2016 USD ($) $ / shares	Feb. 28, 2018 USD ($) $ / shares Rate shares	Feb. 28, 2017 USD ($) $ / shares shares	Feb. 29, 2016 USD ($) $ / shares shares	Aug. 31, 2017 EUR (€)	Feb. 28, 2015 USD ($)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles												$ 0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory												(870)
Depreciation and Amortization, Discontinued Operations												2,939	$ 5,908	$ 6,183
Disposal Group, Including Discontinued Operation, Revenue												91,824	166,512	150,540
Disposal Group, Including Discontinued Operation, Costs of Goods Sold												63,610	109,027	98,391
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)												28,214	57,485	52,149
Disposal Group, Including Discontinued Operation, Operating Expense												25,397	49,489	46,652
Disposal Group, Including Discontinued Operation, Operating Income (Loss)												2,817	7,996	5,497
Disposal Group, Including Discontinued Operation, Interest Expense												(279)	(383)	(177)
Disposal Group, Including Discontinued Operation, Other Income												(145)	(126)	(54)
Disposal Group, Including Discontinued Operation, Other Expense												134	509	123
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax												36,118	0	0
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax												38,801	7,487	5,374
Discontinued Operation, Tax Effect of Discontinued Operation												4,183	1,421	616
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent				$ 2,276	$ (368)	$ 34,931	$ (2,221)	$ 5,649	$ 2,283	$ (2,167)	$ 301	34,618	6,066	4,758
Disposal Group, Including Discontinued Operation, General and Administrative Expense												$ 14,699	$ 28,309	$ 27,148
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share | $ / shares				$ 0	$ 0	$ 1.45	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1.43	$ 0	$ 0
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents								$ 6,844					$ 6,844	$ 6,789		$ 5,328
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		$ 2,314		$ 1,444								$ 1,444
Goodwill		10		54,785				53,905				54,785	53,905	53,905		$ 53,905
Business Acquisition, Percentage of Voting Interests Acquired | Rate			100.00%
Accounts Receivable, Net, Current				81,116				79,971				$ 81,116	79,971
Business Combination, Consideration Transferred		1,814	$ 31,880
Fee payable for future net sales												2.00%
Payments to Acquire Businesses, Gross			$ 15,504
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | Rate			0.00%
Business Combination, Consideration Transferred, Other			$ 1,200
Revenue, Net				122,236	$ 156,563	$ 113,470	$ 114,823	124,894	$ 157,411	$ 118,325	$ 113,900	$ 507,092	514,530	530,206
Inventory, Net				117,992				122,352				117,992	122,352
Property, Plant and Equipment, Net				65,259				65,589				65,259	65,589
Intangible Assets, Net (Excluding Goodwill)				150,320				154,939				150,320	154,939
Other Assets, Noncurrent				13,373				1,699				13,373	1,699
Total assets				575,644				668,486				575,644	668,486
Other Liabilities, Current				36,350				32,110				36,350	32,110
Deferred Tax Liabilities, Net				12,193				27,604				12,193	27,604
Other Liabilities, Noncurrent				3,187				$ 2,125				3,187	2,125
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net				$ 880								880
Business Combination, Bargain Purchase, Gain Recognized, Amount												0	0	4,679
Business Combination, Acquisition Related Costs												0	0	800
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest												$ 27,959	$ (3,202)	$ (6,063)
Earnings Per Share, Basic | $ / shares				$ 0.52	$ 0.36	$ 0.71	$ (0.13)	$ 0.00	$ 0.24	$ 0.12	$ (0.18)
Earnings Per Share, Diluted | $ / shares				$ 0.51	0.35	$ 0.71	(0.13)	$ 0.00	0.24	0.12	(0.18)	$ 1.44	$ 0.18
Weighted Average Number of Shares Outstanding, Basic | shares												24,290,563	24,160,324	24,172,710
Weighted Average Number of Shares Outstanding, Diluted | shares												24,547,246	24,160,324	24,172,710
Derivative Instruments Not Designated as Hedging Instruments, Loss												$ 6,618
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		520		$ 520								520
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets												0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		2,844		2,844								2,844
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other		500		500								500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		500		500								500
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred												0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		$ 2,344		2,344								2,344
Disposal Group, Including Discontinued Operation, Consideration						$ 177,000									€ 148,500
Investment Foreign Currency, Contract, Foreign Currency Amount | €															€ 148,500
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net								$ 10,670					$ 10,670
Disposal Group, Including Discontinued Operation, Inventory, Current								30,701					30,701
Disposal Group, Including Discontinued Operation, Other Assets, Current								31					31
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current								7,261					7,261
Disposal Group, Including Discontinued Operation, Assets, Current				0				55,507				0	55,507
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent								16,012					16,012
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent								49,307					49,307
Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent								21,350					21,350
Disposal Group, Including Discontinued Operation, Assets, Noncurrent				0				86,669				0	86,669
Disposal Group, Including Discontinued Operation, Accounts Payable, Current								14,899					14,899
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current								10,366					10,366
Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable, Current								2,374					2,374
Disposal Group, Including Discontinued Operation, Other Liabilities, Current								1,002					1,002
Disposal Group, Including Discontinued Operation, Liabilities, Current				0				28,641				0	28,641
Capital Lease Obligations, Noncurrent				699				926				699	926
Deferred Compensation Liability, Classified, Noncurrent				3,369				3,844				3,369	3,844
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities, Noncurrent								2,528					2,528
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent								8,259					8,259
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent				$ 0				11,641				$ 0	11,641
Net Assets								$ 101,894					$ 101,894
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share | $ / shares				$ 0	$ (0.02)	$ 1.45	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1.41	$ 0	$ 0
Share-based Compensation												$ 552	$ 753	$ 859
Capital Expenditure, Discontinued Operations												2,652	5,122	4,065
Goodwill, Purchase Accounting Adjustments												870
Long-term Debt				$ 8,476				$ 97,747				8,476	$ 97,747
Business Combination, Contingent Consideration, Liability				530								$ 530
Eyelock [Member]
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination			4,676
Noncontrolling Interest [Member]
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination			12,900
Eyelock [Member]
Accounts Receivable, Net, Current			77
Inventory, Net			304
Property, Plant and Equipment, Net			259
Intangible Assets, Net (Excluding Goodwill)			43,780
Total assets			44,420
Other Liabilities, Current			729
Deferred Tax Liabilities, Net			2,756
Debt and Capital Lease Obligations			3,176
Other Liabilities, Noncurrent			1,200
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			36,559
Finite-Lived Trademarks, Gross			8,435
Business Acquisition, Pro Forma Revenue														531,321
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest														(2,682)
Business Acquisition, Pro Forma Net Income (Loss)														$ (12,098)
Earnings Per Share, Basic | $ / shares														$ (0.11)
Business Acquisition, Pro Forma Earnings Per Share, Basic | $ / shares														(0.50)
Earnings Per Share, Diluted | $ / shares														(0.11)
Business Acquisition, Pro Forma Earnings Per Share, Diluted | $ / shares														$ (0.50)
Weighted Average Number of Shares Outstanding, Diluted | shares												24,547,246	24,160,324	24,172,710
Intangible Assets, Gross (Excluding Goodwill)			43,780
Eyelock [Member] | Technology-Based Intangible Assets [Member]
Goodwill			$ 31,290
Finite-Lived Intangible Asset, Useful Life			11 years 6 months
Eyelock [Member] | Customer Relationships [Member]
Goodwill			$ 3,470
Finite-Lived Intangible Asset, Useful Life			15 years 6 months
Eyelock [Member] | Noncompete Agreements [Member]
Goodwill			$ 585
Finite-Lived Intangible Asset, Useful Life			5 years
Eyelock [Member]
Revenue, Net												$ 335
Variable Interest Entity, Primary Beneficiary [Member]
Debt Instrument, Interest Rate During Period | Rate												10.00%
Line of Credit Facility, Maximum Borrowing Capacity				12,000								$ 12,000
Convertible Notes Payable				21,000								21,000
Discontinued Operations [Member]
Capital Lease Obligations, Noncurrent								474					$ 474
Deferred Compensation Liability, Classified, Noncurrent								380					380
Share-based Compensation												50	84	$ 57
Discontinued Operations, Disposed of by Sale [Member]
Capital Expenditures Incurred but Not yet Paid												1,916	0	1,074
Selling and Marketing Expense [Member]
Disposal Group, Including Discontinued Operation, Operating Expense												2,778	5,097	4,937
Other Operating Income (Expense) [Member]
Disposal Group, Including Discontinued Operation, Operating Expense												7,920	16,083	14,567
Accounts Payable and Accrued Liabilities [Member]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities												0
Other Liabilities [Member]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities												0
Subsequent Event [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 39,000
Debt Instrument, Fee	1.50
Eyelock [Member]
Accounts Receivable, Net, Current				128				295				128	295
Revenue, Net												335	243	$ 143
Inventory, Net				119				135				119	135
Property, Plant and Equipment, Net				186				276				186	276
Intangible Assets, Net (Excluding Goodwill)				36,126				39,187				36,126	39,187
Other Assets, Noncurrent				119				96				119	96
Total assets				36,456				40,189				36,456	40,189
Other Liabilities, Noncurrent								1,200					1,200
Long-term Debt				$ 33,722				$ 22,098				$ 33,722	$ 22,098