Variable Interest Entities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016	Feb. 28, 2017
Convertible Notes Payable	$ 21,000		$ 21,000
Cash and Cash Equivalents, at Carrying Value	(45,821)		(45,821)		$ (956)
Accounts Receivable, Net, Current	70,956		70,956		79,971
Inventory, Net	142,053		142,053		122,352
Nontrade Receivables	617		617		634
Prepaid Expense and Other Assets, Current	23,543		23,543		12,332
Total current assets	284,634		284,634		273,348
Property, Plant and Equipment, Net	66,197		66,197		65,589
Other Assets, Noncurrent	6,541		6,541		1,699
Total assets	594,817		594,817		668,486
Accounts Payable, Current	44,146		44,146		46,244
Other Liabilities, Current	49,227		49,227		32,110
Current portion of long-term debt	6,770		6,770		9,215
Liabilities, Current	115,496		115,496		130,067
Long-term Debt	8,842		8,842		97,747
Long-term Debt, Excluding Current Maturities	11,912		11,912		101,228
Other Liabilities, Noncurrent	3,389		3,389		2,125
Liabilities	164,285		164,285		277,171
Additional Paid in Capital	295,847		295,847		295,432
Retained Earnings (Accumulated Deficit)	173,445		173,445		159,369
Stockholders' Equity Attributable to Parent	432,916		432,916		390,005
Liabilities and Equity	594,817		594,817		668,486
Revenue, Net	113,470	$ 118,325	228,293	$ 232,225
Cost of Goods Sold	85,049	85,882	169,728	167,809
Gross Profit	28,421	32,443	58,565	64,416
Selling Expense	10,652	9,924	23,061	21,306
General and Administrative Expense	20,640	18,021	40,837	38,148
Engineering and Technical Support Expense	7,383	6,609	14,037	14,655
Operating Expenses	38,675	34,554	77,935	74,109
Operating Income (Loss)	(10,254)	(2,111)	(19,370)	(9,693)
Interest and bank charges	(1,843)	(1,729)	(3,635)	(3,293)
Other Nonoperating Income (Expense)	(7,629)	223	(8,636)	(257)
Other Income	(6,129)	39	7,125	(197)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(16,383)	(2,072)	(26,495)	(9,890)
Income Tax Expense (Benefit)	3,465	(5,543)	(3,963)	(6,940)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	15,083	1,304	$ 10,178	(4,816)
Minimum [Member]
Debt Instrument, Fee			1.35
Maximum [Member]
Debt Instrument, Fee			1.50
Eyelock [Member]
Line of Credit Facility, Maximum Borrowing Capacity	12,000		$ 12,000
Line of Credit Facility, Interest Rate During Period			10.00%
Debt Instrument, Interest Rate During Period			10.00%
Cash and Cash Equivalents, at Carrying Value	(24)		$ (24)		(11)
Accounts Receivable, Net, Current	108		108		295
Inventory, Net	118		118		135
Nontrade Receivables	106		106		0
Prepaid Expense and Other Assets, Current	109		109		189
Total current assets	417		417		630
Property, Plant and Equipment, Net	232		232		276
Intangible Assets, Net (Including Goodwill)	37,657		37,657		39,187
Other Assets, Noncurrent	90		90		96
Total assets	38,396		38,396		40,189
Accounts Payable, Current	381		381		710
Other Liabilities, Current	5,154		5,154		3,506
Liabilities, Current	32,535		32,535		26,314
Long-term Debt	1,456		1,456		0
Long-term Debt, Excluding Current Maturities	28,456		28,456
Other Liabilities, Noncurrent	1,200		1,200		1,200
Liabilities	35,191		35,191		27,514
Additional Paid in Capital	41,416		41,416		40,891
Retained Earnings (Accumulated Deficit)	(38,211)		(38,211)		(28,216)
Stockholders' Equity Attributable to Parent	3,205		3,205		12,675
Liabilities and Equity	38,396		38,396		$ 40,189
Revenue, Net	150	64	214	111
Cost of Goods Sold	79	21	57	30
Gross Profit	71	43	157	81
Selling Expense	762	416	1,355	1,086
General and Administrative Expense	2,019	1,611	3,677	3,297
Engineering and Technical Support Expense	1,785	2,038	3,818	4,094
Operating Expenses	4,566	4,065	8,850	8,477
Operating Income (Loss)	(4,495)	(4,022)	(8,693)	(8,396)
Interest and bank charges	(694)	(376)	(1,303)	(651)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(5,189)	(4,398)	(9,996)	(9,047)
Income Tax Expense (Benefit)	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (5,189)	$ (4,398)	$ (9,996)	$ (9,047)