Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Immaterial Error Corrections (Details) (USD $)	3 Months Ended								12 Months Ended				3 Months Ended
Immaterial Error Corrections (Details) (USD $)	May 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012	Aug. 31, 2012	May 31, 2014	May 31, 2013	May 31, 2012	May 31, 2011	Aug. 31, 2014
Cash and Cash Equivalents, at Carrying Value	$ 16,105,000				$ 21,802,000				$ 16,105,000	$ 21,802,000	$ 23,739,000	$ 45,984,000
Accounts Receivable, Net, Current	61,968,000us-gaap_AccountsReceivableNetCurrent				47,681,000us-gaap_AccountsReceivableNetCurrent				61,968,000us-gaap_AccountsReceivableNetCurrent	47,681,000us-gaap_AccountsReceivableNetCurrent	46,903,000us-gaap_AccountsReceivableNetCurrent	27,011,000us-gaap_AccountsReceivableNetCurrent
Net Cash Provided by (Used in) Operating Activities									24,681,000	26,652,000	11,602,000
Revenue, Net	94,060,000us-gaap_SalesRevenueNet	88,150,000us-gaap_SalesRevenueNet	88,571,000us-gaap_SalesRevenueNet	83,644,000us-gaap_SalesRevenueNet	89,932,000us-gaap_SalesRevenueNet	81,571,000us-gaap_SalesRevenueNet	87,007,000us-gaap_SalesRevenueNet	83,406,000us-gaap_SalesRevenueNet	354,425,000us-gaap_SalesRevenueNet	341,916,000us-gaap_SalesRevenueNet	221,917,000us-gaap_SalesRevenueNet	215,620,000us-gaap_SalesRevenueNet
Cost of Goods Sold	46,650,000us-gaap_CostOfGoodsSold								174,757,000us-gaap_CostOfGoodsSold	173,402,000us-gaap_CostOfGoodsSold	96,608,000us-gaap_CostOfGoodsSold	90,047,000us-gaap_CostOfGoodsSold
Gross profit	47,410,000us-gaap_GrossProfit	44,793,000us-gaap_GrossProfit	44,885,000us-gaap_GrossProfit	42,580,000us-gaap_GrossProfit	43,982,000us-gaap_GrossProfit	41,129,000us-gaap_GrossProfit	44,016,000us-gaap_GrossProfit	39,387,000us-gaap_GrossProfit	179,668,000us-gaap_GrossProfit	168,514,000us-gaap_GrossProfit	125,309,000us-gaap_GrossProfit	125,573,000us-gaap_GrossProfit
Operating Expenses	43,826,000us-gaap_OperatingExpenses								166,728,000us-gaap_OperatingExpenses	162,226,000us-gaap_OperatingExpenses	129,217,000us-gaap_OperatingExpenses	113,672,000us-gaap_OperatingExpenses
Operating income (loss)	3,584,000us-gaap_OperatingIncomeLoss								12,940,000us-gaap_OperatingIncomeLoss	6,288,000us-gaap_OperatingIncomeLoss	(3,908,000)us-gaap_OperatingIncomeLoss	11,901,000us-gaap_OperatingIncomeLoss
Other Nonoperating Income (Expense)	(1,474,000)us-gaap_OtherNonoperatingIncomeExpense								(7,200,000)us-gaap_OtherNonoperatingIncomeExpense	(7,875,000)us-gaap_OtherNonoperatingIncomeExpense	(1,514,000)us-gaap_OtherNonoperatingIncomeExpense	(1,265,000)us-gaap_OtherNonoperatingIncomeExpense
Income (loss) before income tax expense (benefit)	2,110,000								5,740,000	(1,587,000)	(5,422,000)	10,636,000
Income Tax Expense (Benefit)	(3,325,000)us-gaap_IncomeTaxExpenseBenefit								(3,074,000)us-gaap_IncomeTaxExpenseBenefit	376,000us-gaap_IncomeTaxExpenseBenefit	239,000us-gaap_IncomeTaxExpenseBenefit	(2,559,000)us-gaap_IncomeTaxExpenseBenefit
Net income (loss)	(1,215,000)us-gaap_NetIncomeLoss	4,515,000us-gaap_NetIncomeLoss	(261,000)us-gaap_NetIncomeLoss	(373,000)us-gaap_NetIncomeLoss	(1,021,000)us-gaap_NetIncomeLoss	(1,083,000)us-gaap_NetIncomeLoss	1,878,000us-gaap_NetIncomeLoss	(985,000)us-gaap_NetIncomeLoss	2,666,000us-gaap_NetIncomeLoss	(1,211,000)us-gaap_NetIncomeLoss	(5,183,000)us-gaap_NetIncomeLoss	8,077,000us-gaap_NetIncomeLoss
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1,140,000)								2,931,000	(1,471,000)	(5,184,000)	8,198,000
Net Cash Provided by (Used in) Investing Activities									(16,448,000)	(22,238,000)	(176,234,000)
Net Cash Provided by (Used in) Financing Activities									(14,016,000)	(6,286,000)	142,338,000
Inventory, net	61,234,000us-gaap_InventoryNet				55,079,000us-gaap_InventoryNet				61,234,000us-gaap_InventoryNet	55,079,000us-gaap_InventoryNet
Prepaid Expense and Other Assets, Current	5,471,000				7,285,000				5,471,000	7,285,000	9,803,000
Assets, Current	151,722,000us-gaap_AssetsCurrent				141,154,000us-gaap_AssetsCurrent				151,722,000us-gaap_AssetsCurrent	141,154,000us-gaap_AssetsCurrent	157,761,000us-gaap_AssetsCurrent	194,175,000us-gaap_AssetsCurrent
Property, Plant and Equipment, Net	66,590,000us-gaap_PropertyPlantAndEquipmentNet				62,391,000us-gaap_PropertyPlantAndEquipmentNet				66,590,000us-gaap_PropertyPlantAndEquipmentNet	62,391,000us-gaap_PropertyPlantAndEquipmentNet	55,610,000us-gaap_PropertyPlantAndEquipmentNet
Other Assets, Noncurrent	3,926,000us-gaap_OtherAssetsNoncurrent				4,908,000us-gaap_OtherAssetsNoncurrent				3,926,000us-gaap_OtherAssetsNoncurrent	4,908,000us-gaap_OtherAssetsNoncurrent	10,359,000us-gaap_OtherAssetsNoncurrent
GOODWILL	360,473,000us-gaap_Goodwill				355,637,000us-gaap_Goodwill				360,473,000us-gaap_Goodwill	355,637,000us-gaap_Goodwill	309,091,000us-gaap_Goodwill
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	10,403,000us-gaap_DeferredTaxAssetsNetNoncurrent				11,425,000us-gaap_DeferredTaxAssetsNetNoncurrent				10,403,000us-gaap_DeferredTaxAssetsNetNoncurrent	11,425,000us-gaap_DeferredTaxAssetsNetNoncurrent	39,271,000us-gaap_DeferredTaxAssetsNetNoncurrent	5,857,000us-gaap_DeferredTaxAssetsNetNoncurrent
Assets	798,891,000us-gaap_Assets				790,734,000us-gaap_Assets				798,891,000us-gaap_Assets	790,734,000us-gaap_Assets	719,988,000us-gaap_Assets	437,313,000us-gaap_Assets
Accrued Liabilities, Current	16,652,000us-gaap_AccruedLiabilitiesCurrent				16,356,000us-gaap_AccruedLiabilitiesCurrent				16,652,000us-gaap_AccruedLiabilitiesCurrent	16,356,000us-gaap_AccruedLiabilitiesCurrent	17,070,000us-gaap_AccruedLiabilitiesCurrent	13,734,000us-gaap_AccruedLiabilitiesCurrent
Current portion of contingent consideration	10,918,000				9,207,000				10,918,000	9,207,000
Liabilities, Current	66,753,000us-gaap_LiabilitiesCurrent				63,315,000us-gaap_LiabilitiesCurrent				66,753,000us-gaap_LiabilitiesCurrent	63,315,000us-gaap_LiabilitiesCurrent	53,770,000us-gaap_LiabilitiesCurrent	25,400,000us-gaap_LiabilitiesCurrent
Business Combination, Contingent Consideration, Liability, Noncurrent	56,413,000				65,842,000				56,413,000	65,842,000
Liabilities	262,056,000us-gaap_Liabilities				264,632,000us-gaap_Liabilities				262,056,000us-gaap_Liabilities	264,632,000us-gaap_Liabilities	196,597,000us-gaap_Liabilities	31,675,000us-gaap_Liabilities
Additional Paid in Capital, Common Stock	508,354,000				500,554,000				508,354,000	500,554,000		371,380,000
Retained Earnings (Accumulated Deficit)	31,501,000				28,835,000				31,501,000	28,835,000	30,046,000	35,280,000
Stockholders' Equity Attributable to Parent	536,835,000us-gaap_StockholdersEquity				526,102,000us-gaap_StockholdersEquity				536,835,000us-gaap_StockholdersEquity	526,102,000us-gaap_StockholdersEquity	523,391,000us-gaap_StockholdersEquity	405,637,000us-gaap_StockholdersEquity
Intangible Assets, Net (Excluding Goodwill)	205,256,000				214,673,000				205,256,000	214,673,000	147,363,000
Accounts Payable, Current	32,895,000us-gaap_AccountsPayableCurrent				24,470,000us-gaap_AccountsPayableCurrent				32,895,000us-gaap_AccountsPayableCurrent	24,470,000us-gaap_AccountsPayableCurrent
Depreciation									8,400,000us-gaap_Depreciation	8,700,000us-gaap_Depreciation	3,600,000us-gaap_Depreciation
Scenario, Adjustment [Member]
Prepaid Expense and Other Assets, Noncurrent													1,200,000
Cash and Cash Equivalents, at Carrying Value											231,000
Accounts Receivable, Net, Current	(180,000)				(110,000)				(180,000)	(110,000)	(1,685,000)	(130,000)
Net Cash Provided by (Used in) Operating Activities									(599,000)	(231,000)	105,000
Revenue, Net	(5,000)								(30,000)	(110,000)	130,000	(130,000)
Cost of Goods Sold	116,000								163,000	365,000	779,000	0
Gross profit	(121,000)								(193,000)	(475,000)	(649,000)	(130,000)
Operating Expenses	30,000								315,000	331,000	297,000	(68,000)
Operating income (loss)	(151,000)								(508,000)	(806,000)	(946,000)	(62,000)
Other Nonoperating Income (Expense)	15,000								(132,000)	(138,000)	806,000	0
Income (loss) before income tax expense (benefit)	(136,000)								(640,000)	(944,000)	(140,000)	(62,000)
Income Tax Expense (Benefit)	(1,000)								218,000	345,000	51,000	22,000
Net income (loss)	(137,000)								(422,000)	(599,000)	(89,000)	(40,000)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(137,000)								(422,000)	(599,000)	(89,000)	(40,000)
Net Cash Provided by (Used in) Investing Activities									599,000	0	126,000
Net Cash Provided by (Used in) Financing Activities									0	0	0
Inventory, net	178,000				17,000				178,000	17,000
Prepaid Expense and Other Assets, Current	(504,000)				(269,000)				(504,000)	(269,000)	(23,000)
Assets, Current	(506,000)				(362,000)				(506,000)	(362,000)	(1,477,000)	(130,000)
Property, Plant and Equipment, Net	(618,000)				(259,000)				(618,000)	(259,000)	(305,000)
Other Assets, Noncurrent	(950,000)				(651,000)				(950,000)	(651,000)	(348,000)
GOODWILL	179,000				179,000				179,000	179,000	179,000
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	636,000				418,000				636,000	418,000	73,000	22,000
Assets	(1,259,000)				(850,000)				(1,259,000)	(850,000)	(1,781,000)	(108,000)
Accrued Liabilities, Current	(110,000)				(70,000)				(110,000)	(70,000)	(1,652,000)	(107,000)
Current portion of contingent consideration	(5,423,000)								(5,423,000)
Liabilities, Current	(5,533,000)				(122,000)				(5,533,000)	(122,000)	(1,652,000)	(107,000)
Business Combination, Contingent Consideration, Liability, Noncurrent	5,333,000								5,333,000
Liabilities	(200,000)				(122,000)				(200,000)	(122,000)	(1,652,000)	(107,000)
Additional Paid in Capital, Common Stock	91,000								91,000			(13,000)
Retained Earnings (Accumulated Deficit)	(1,150,000)				(728,000)				(1,150,000)	(728,000)	(129,000)	11,000
Stockholders' Equity Attributable to Parent	(1,059,000)				(728,000)				(1,059,000)	(728,000)	(129,000)	(2,000)
Intangible Assets, Net (Excluding Goodwill)					(175,000)					(175,000)	97,000
Accounts Payable, Current					(52,000)					(52,000)
Depreciation													400,000
Scenario, Previously Reported [Member]
Cash and Cash Equivalents, at Carrying Value											23,508,000
Accounts Receivable, Net, Current	62,148,000				47,791,000				62,148,000	47,791,000	48,588,000	27,141,000
Net Cash Provided by (Used in) Operating Activities									25,280,000	26,883,000	11,497,000
Revenue, Net	94,065,000								354,455,000	342,026,000	221,787,000	215,750,000
Cost of Goods Sold	46,534,000								174,594,000	173,037,000	95,829,000	90,047,000
Gross profit	47,531,000								179,861,000	168,989,000	125,958,000	125,703,000
Operating Expenses	43,796,000								166,413,000	161,895,000	128,920,000	113,740,000
Operating income (loss)	3,735,000								13,448,000	7,094,000	(2,962,000)	11,963,000
Other Nonoperating Income (Expense)	(1,489,000)								(7,068,000)	(7,737,000)	(2,320,000)	(1,265,000)
Income (loss) before income tax expense (benefit)	2,246,000								6,380,000	(643,000)	(5,282,000)	10,698,000
Income Tax Expense (Benefit)	(3,324,000)								(3,292,000)	31,000	188,000	(2,581,000)
Net income (loss)	(1,078,000)								3,088,000	(612,000)	(5,094,000)	8,117,000
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1,003,000)								3,353,000	(872,000)	(5,095,000)	8,238,000
Net Cash Provided by (Used in) Investing Activities									(17,047,000)	(22,238,000)	(176,360,000)
Net Cash Provided by (Used in) Financing Activities									(14,016,000)	(6,286,000)	142,338,000
Inventory, net	61,056,000				55,062,000				61,056,000	55,062,000
Prepaid Expense and Other Assets, Current	5,975,000				7,554,000				5,975,000	7,554,000	9,826,000
Assets, Current	152,228,000				141,516,000				152,228,000	141,516,000	159,238,000	194,305,000
Property, Plant and Equipment, Net	67,208,000				62,650,000				67,208,000	62,650,000	55,915,000
Other Assets, Noncurrent	4,876,000				5,559,000				4,876,000	5,559,000	10,707,000
GOODWILL	360,294,000				355,458,000				360,294,000	355,458,000	308,912,000
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	9,767,000				11,007,000				9,767,000	11,007,000	39,198,000	5,835,000
Assets	800,150,000				791,584,000				800,150,000	791,584,000	721,769,000	437,421,000
Accrued Liabilities, Current	16,762,000				16,426,000				16,762,000	16,426,000	18,722,000	13,841,000
Current portion of contingent consideration	16,341,000								16,341,000
Liabilities, Current	72,286,000				63,437,000				72,286,000	63,437,000	55,422,000	25,507,000
Business Combination, Contingent Consideration, Liability, Noncurrent	51,080,000								51,080,000
Liabilities	262,256,000				264,754,000				262,256,000	264,754,000	198,249,000	31,782,000
Additional Paid in Capital, Common Stock	508,263,000								508,263,000			371,393,000
Retained Earnings (Accumulated Deficit)	32,651,000				29,563,000				32,651,000	29,563,000	30,175,000	35,269,000
Stockholders' Equity Attributable to Parent	537,894,000				526,830,000				537,894,000	526,830,000	523,520,000	405,639,000
Intangible Assets, Net (Excluding Goodwill)					214,848,000					214,848,000	147,266,000
Accounts Payable, Current					$ 24,522,000					$ 24,522,000