Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Earnings Per Share (Details Textual)

v2.4.1.9
Note 8 - Earnings Per Share (Details Textual) (Stock Options and Restricted Stock [Member])
3 Months Ended 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Stock Options and Restricted Stock [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 534,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= tech_StockOptionsAndRestrictedStockMember
167,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= tech_StockOptionsAndRestrictedStockMember
534,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= tech_StockOptionsAndRestrictedStockMember
193,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= tech_StockOptionsAndRestrictedStockMember