Represents the number of major customers of the entity.

No definition available.

Name:	tpcs_NumberOfMajorCustomers
Namespace Prefix:	tpcs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_AccountsReceivableNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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=6927468&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 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

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=6927468&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 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
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=6880815&loc=d3e20235-122688

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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

CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS (Details) (USD $)	3 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2012
Concentration of credit risk and major customers
Accounts receivable balance	$ 5,029,995		$ 4,901,791
Net sales	7,145,739	9,176,440	33,266,778
Receivable balance \| Customer concentration
Concentration of credit risk and major customers
Number of major customers	3
Concentration risk percentage	84.00%
Receivable balance \| Customer concentration \| Customer A
Concentration of credit risk and major customers
Accounts receivable balance	3,073,454		1,160,957
Concentration risk percentage	61.00%		24.00%
Receivable balance \| Customer concentration \| Customer B
Concentration of credit risk and major customers
Accounts receivable balance	462,266		726,908
Concentration risk percentage	9.00%		15.00%
Receivable balance \| Customer concentration \| Customer C
Concentration of credit risk and major customers
Accounts receivable balance	728,429		561,927
Concentration risk percentage	14.00%		11.00%
Net sales \| Customer concentration \| Customer A
Concentration of credit risk and major customers
Net sales	2,030,235
Concentration risk percentage	28.00%
Net sales \| Customer concentration \| Customer B
Concentration of credit risk and major customers
Net sales	997,684	1,133,675
Concentration risk percentage	14.00%	12.00%
Net sales \| Customer concentration \| Customer C
Concentration of credit risk and major customers
Net sales	846,103
Concentration risk percentage	12.00%
Net sales \| Customer concentration \| Customer D
Concentration of credit risk and major customers
Net sales	$ 398,291	$ 4,442,295
Concentration risk percentage	6.00%	48.00%