Represents the number of major customers of the entity.

No definition available.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3-4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 3
-Subparagraph a(1)
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 4
-Article 5

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
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- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=tpcs_CustomerAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=tpcs_CustomerBMember
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- Details

Name:	us-gaap_MajorCustomersAxis=tpcs_CustomerCMember
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Data Type:	na
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- Details

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- Details

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- Details

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- Details

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- Details

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CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS (Details)	3 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Mar. 31, 2016 USD ($)
Concentration of credit risk and major customers
Accounts receivable	$ 1,395,905		$ 2,022,480
Net sales	$ 4,644,805	$ 4,374,975	16,853,952
Accounts Receivable \| Customer Concentration Risk
Concentration of credit risk and major customers
Number of major customers \| item	5
Concentration risk percentage	99.00%
Accounts Receivable \| Customer Concentration Risk \| Customer A
Concentration of credit risk and major customers
Accounts receivable	$ 381,677
Concentration risk percentage	27.00%
Accounts Receivable \| Customer Concentration Risk \| Customer B
Concentration of credit risk and major customers
Accounts receivable	$ 364,997		$ 315,699
Concentration risk percentage	26.00%		16.00%
Accounts Receivable \| Customer Concentration Risk \| Customer C
Concentration of credit risk and major customers
Accounts receivable	$ 258,093
Concentration risk percentage	18.00%
Accounts Receivable \| Customer Concentration Risk \| Customer D
Concentration of credit risk and major customers
Accounts receivable	$ 217,891
Concentration risk percentage	16.00%
Accounts Receivable \| Customer Concentration Risk \| Customer E
Concentration of credit risk and major customers
Accounts receivable	$ 170,137
Concentration risk percentage	12.00%
Accounts Receivable \| Customer Concentration Risk \| Customer F
Concentration of credit risk and major customers
Accounts receivable			$ 834,501
Concentration risk percentage			41.00%
Accounts Receivable \| Customer Concentration Risk \| Customer G
Concentration of credit risk and major customers
Accounts receivable			$ 225,415
Concentration risk percentage			11.00%
Net sales \| Customer Concentration Risk \| Customer A
Concentration of credit risk and major customers
Net sales	$ 1,487,521
Concentration risk percentage	32.00%
Net sales \| Customer Concentration Risk \| Customer B
Concentration of credit risk and major customers
Net sales	$ 1,286,271	$ 535,092
Concentration risk percentage	28.00%	12.00%
Net sales \| Customer Concentration Risk \| Customer C
Concentration of credit risk and major customers
Net sales	$ 1,259,255	$ 1,177,537
Concentration risk percentage	27.00%	27.00%
Net sales \| Customer Concentration Risk \| Customer D
Concentration of credit risk and major customers
Net sales		$ 666,989
Concentration risk percentage		15.00%
Net sales \| Customer Concentration Risk \| Customer E
Concentration of credit risk and major customers
Net sales		$ 469,718
Concentration risk percentage		11.00%