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INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net loss | $ (12,156)us-gaap_NetIncomeLoss | $ (11,460)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation | 1,002 us-gaap_Depreciation | 937 us-gaap_Depreciation
Loss on property and equipment |  | 35 us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Accretion of discount, amortization of premium and changes in accrued interest of marketable securities | 145 psti_AmortizationOfDiscountAndPremiumAndChangesInAccruedInterestFromMarketableSecurities | 465 psti_AmortizationOfDiscountAndPremiumAndChangesInAccruedInterestFromMarketableSecurities
Gain from sale of investments of available-for-sale marketable securities | (197)us-gaap_MarketableSecuritiesRealizedGainLoss | (164)us-gaap_MarketableSecuritiesRealizedGainLoss
Stock-based compensation to employees, directors and non-employees consultants | 1,754 us-gaap_ShareBasedCompensation | 2,336 us-gaap_ShareBasedCompensation
Decrease (increase) in OCS receivables | 2,105 us-gaap_IncreaseDecreaseInOtherReceivables | (277)us-gaap_IncreaseDecreaseInOtherReceivables
Decrease (increase) in other accounts receivable | 181 us-gaap_IncreaseDecreaseInAccountsReceivable | (124)us-gaap_IncreaseDecreaseInAccountsReceivable
Decrease (increase) in prepaid expenses | (365)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 116 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Increase (decrease) in trade payables | (772)us-gaap_IncreaseDecreaseInAccountsPayable | 488 us-gaap_IncreaseDecreaseInAccountsPayable
Decrease in other accounts payable and accrued expenses | (417)us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | (167)us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
Decrease in deferred revenues | (190)us-gaap_IncreaseDecreaseInDeferredRevenue | (190)us-gaap_IncreaseDecreaseInDeferredRevenue
Decrease in advance payment from United Therapeutics | (104)us-gaap_IncreaseDecreaseInCustomerAdvances | (96)us-gaap_IncreaseDecreaseInCustomerAdvances
Increase in interest receivable on short-term deposits | (14)us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet |
Linkage differences and interest on short and long-term deposits | 65 psti_LinkageDifferencesAndInterestOnShortAndLongTermRestrictedLeaseDeposit | 1 psti_LinkageDifferencesAndInterestOnShortAndLongTermRestrictedLeaseDeposit
Accrued severance pay, net | (63)us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations | (7)us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations
Net cash used by operating activities | (9,026)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | (8,107)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchase of property and equipment | (552)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (1,169)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Repayment of short-term deposits | 11,072 us-gaap_PaymentsForProceedsFromShortTermInvestments | 7,961 us-gaap_PaymentsForProceedsFromShortTermInvestments
Repayment of (investment in) long-term deposits | 3 us-gaap_PaymentsForProceedsFromLongtermInvestments | (3)us-gaap_PaymentsForProceedsFromLongtermInvestments
Repayment of long-term restricted deposit |  | 116 us-gaap_IncreaseDecreaseInRestrictedCashAndInvestments
Proceeds from sale of available-for-sale marketable securities | 2,409 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities | 2,963 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
Proceeds from redemption of available-for-sale marketable securities | 301 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities | 583 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
Investment in available-for-sale marketable securities | (2,513)us-gaap_PaymentsToAcquireAvailableForSaleSecurities | (7,904)us-gaap_PaymentsToAcquireAvailableForSaleSecurities
Net cash provided by investing activities | 10,720 us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | 2,547 us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Exercise of options and warrants | 246 us-gaap_ProceedsFromStockOptionsExercised | 1,179 us-gaap_ProceedsFromStockOptionsExercised
Proceeds from issuance of common stock in a private placement | 528 us-gaap_ProceedsFromIssuanceOfPrivatePlacement |
Net cash provided by financing activities | 774 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | 1,179 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Increase (decrease) in cash and cash equivalents | 2,468 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (4,381)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at the beginning of the period | 4,493 us-gaap_CashAndCashEquivalentsAtCarryingValue | 9,007 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents at the end of the period | 6,961 us-gaap_CashAndCashEquivalentsAtCarryingValue | 4,626 us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental disclosure of cash flow activities: |  |
Taxes paid due to non-deductible expenses | 17 us-gaap_IncomeTaxesPaid | 35 us-gaap_IncomeTaxesPaid
Supplemental disclosure of non-cash activities: |  |
Purchase of property and equipment on credit | 72 us-gaap_CapitalExpendituresIncurredButNotYetPaid | 258 us-gaap_CapitalExpendituresIncurredButNotYetPaid
Issuance of common stock under CHA agreement |  | $ 10,414 us-gaap_NoncashOrPartNoncashAcquisitionInvestmentsAcquired1

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- Definition The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The net amount paid (received) by the reporting entity through acquisition or sale and maturities of long-term investments which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, beyond the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the long-term. + References No definition available. + Details
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- Definition The net amount paid (received) by the reporting entity through acquisition or sale and maturities of short-term investments with an original maturity that is three months or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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