Acquisitions (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015	Feb. 29, 2016	Sep. 01, 2015	Feb. 28, 2015	Jan. 09, 2014
Business Combination, Acquisition Related Costs	$ 0	$ 800	$ 0	$ 800	$ 800
Payments to Acquire Businesses, Gross		15,504
Business Combination, Consideration Transferred, Other		$ 1,200
Business Acquisition, Percentage of Voting Interests Acquired		0.00%		0.00%		0.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		0.00%		0.00%
Business Combination, Consideration Transferred		$ 31,880	31,880
Revenue, Net	198,937	192,506	513,655	$ 511,063
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 3,910	$ 6,086	$ (906)	$ 978
Earnings Per Share, Basic	$ 0.24	$ 0.32	$ 0.19	$ 0.11
Earnings Per Share, Diluted	$ 0.24	$ 0.32	$ 0.19	$ 0.11
Weighted Average Number of Shares Outstanding, Basic	24,160,324
Cash and Cash Equivalents, at Carrying Value	$ 5,672	$ 12,435	$ 5,672	$ 12,435	11,767		$ 8,448
Line of Credit Facility, Maximum Borrowing Capacity								$ 125,000
Convertible Notes Payable	12,000		12,000
Accounts Receivable, Net, Current	110,408		110,408		87,055
Inventory, Net	158,636		158,636		144,028
Prepaid Expense and Other Assets, Current	19,681		19,681		17,256
Property, Plant and Equipment, Net	79,664		79,664		79,422
Goodwill	103,265		103,265		104,349
Intangible Assets, Net (Excluding Goodwill)	178,300		178,300		185,022
Other Assets, Noncurrent	1,818		1,818		2,168
Assets	694,506		694,506		667,190
Other Liabilities, Current	44,785		44,785		50,748
Accrued Income Taxes, Current	39		39		4,081
Capital Lease Obligations, Noncurrent	704		704		1,381
Other Liabilities, Noncurrent	9,988		9,988		10,480
Business Combination, Bargain Purchase, Gain Recognized, Amount	$ 0	4,679	$ 0	4,679
Weighted Average Number of Shares Outstanding, Diluted	24,287,431
Eyelock [Member]
Business Acquisition, Pro Forma Revenue		192,506		512,178
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		7,777		2,669
Business Acquisition, Pro Forma Net Income (Loss)		$ 6,116		$ (4,152)
Earnings Per Share, Basic		$ 0.32		$ 0.11
Basic Earnings Per Share, Pro Forma		0.25		(170)
Earnings Per Share, Diluted		0.32		0.11
Business Acquisition, Pro Forma Earnings Per Share, Diluted		$ 0.25		$ (170)
Weighted Average Number of Shares Outstanding, Basic		24,183,791	24,160,324	24,177,061
Accounts Receivable, Net, Current	$ 77		$ 77
Inventory, Net	304		304
Property, Plant and Equipment, Net	259		259
Goodwill	31,290		31,290
Finite-Lived Trademarks, Gross	8,435		8,435
Intangible Assets, Net (Excluding Goodwill)	43,780		43,780
Assets	44,420		44,420
Other Liabilities, Current	729		729
Deferred Tax Liabilities, Net	2,756		2,756
Debt and Capital Lease Obligations	3,176		3,176
Other Liabilities, Noncurrent	1,200		1,200
Finite-Lived Customer Relationships, Gross	3,470		3,470
Finite-Lived Patents, Gross	585		585
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	36,559		36,559
Intangible Assets, Gross (Excluding Goodwill)	$ 43,780		$ 43,780
Weighted Average Number of Shares Outstanding, Diluted		24,219,555	24,237,357	24,211,651
Minimum [Member]
Debt Instrument, Fee			1.35
Maximum [Member]
Debt Instrument, Fee			1.45
Technology-Based Intangible Assets [Member] | Eyelock [Member]
Finite-Lived Intangible Asset, Useful Life	11 years 6 months
Customer Relationships [Member] | Eyelock [Member]
Finite-Lived Intangible Asset, Useful Life	15 years 6 months
Patents [Member] | Eyelock [Member]
Finite-Lived Intangible Asset, Useful Life	5 years
Eyelock [Member]
Revenue, Net	$ 100	$ 72	$ 211	$ 72
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(4,844)	(4,336)	(13,891)	$ (4,336)
Cash and Cash Equivalents, at Carrying Value	21		21		20
Line of Credit Facility, Maximum Borrowing Capacity	12,000		12,000
Accounts Receivable, Net, Current	340		340		195
Inventory, Net	395		395		304
Prepaid Expense and Other Assets, Current	208		208		256
Property, Plant and Equipment, Net	286		286		302
Other Assets, Noncurrent	108		108		0
Assets	41,311		41,311		43,326
Other Liabilities, Current	2,570		2,570		1,103
Other Liabilities, Noncurrent	$ 1,200		$ 1,200		$ 1,200
Debt Instrument, Name [Domain]
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
Line of Credit [Member] | Eyelock [Member]
Line of Credit Facility, Interest Rate During Period	10.00%
Line of Credit [Member] | Eyelock [Member]
Line of Credit Facility, Interest Rate During Period	10.00%