XML 55 R30.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Note 1 - Nature of Business and Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Aug. 31, 2015
Notes Tables |
Allowance for Credit Losses on Financing Receivables [Table Text Block] |
August 31, 2012 |  | $ | 20,000 |
Bad debts |  |  | 21,000 |
Adjustment to provision |  |  | (21,000 | )
August 31, 2013 |  | $ | 20,000 |
Bad debts |  |  | 107,000 |
Adjustment to provision |  |  | (87,000 | )
August 31, 2014 |  |  | 40,000 |
Bad debts |  |  | 6,000 |
Adjustment to provision |  |  | (6,000 | )
August 31, 2015 |  | $ | 40,000 |
Property and Equipment Useful Life [Table Text Block] |
Buildings and improvements (years) |  | 5 | - | 30 |
Machinery and equipment (years) |  | 3 | - | 10 |

X
- Definition Tabular disclosure of property and equipment useful life. + References No definition available. + Details
Name: | ntic_PropertyAndEquipmentUsefulLifeTableTextBlock
Namespace Prefix: | ntic_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration