Pressure BioSciences, Inc. Quarterly report pursuant to Section 13 or 15(d)

3. Summary of Significant Accounting Policies (Details 8)

3. Summary of Significant Accounting Policies (Details 8) (USD $)	0 Months Ended	1 Months Ended																	3 Months Ended
	Sep. 03, 2014	Mar. 26, 2015	Mar. 20, 2015	Mar. 09, 2015	Mar. 04, 2015	Feb. 25, 2015	Nov. 17, 2014	Nov. 10, 2014	Sep. 26, 2014	Sep. 10, 2014	Aug. 28, 2014	Mar. 27, 2015	Mar. 17, 2015	Feb. 02, 2015	Jul. 07, 2014	Mar. 31, 2015	Mar. 11, 2015	Jan. 09, 2015	Mar. 31, 2015	Dec. 31, 2014	Nov. 10, 2011	Mar. 02, 2015	Feb. 26, 2015
Expected life (in months)	36 months	6 months	6 months	6 months	6 months	6 months	12 months	10 months	12 months	12 months	6 months
Expected volatility	153.80%	143.20%	140.90%	139.20%	138.90%	132.10%	117.90%	104.20%	116.60%	117.60%	104.40%					124.40%			124.40%	116.00%	104.50%
Risk-free interest rate	0.99%	0.07%	0.08%	0.08%	0.08%	0.08%	0.12%	0.10%	0.11%	0.12%	0.05%					0.31%			0.31%	0.58%	0.875%
Exercise price	$ 0.35pbio_ExercisePriceWarrants	$ 0.18pbio_ExercisePriceWarrants	$ 0.20pbio_ExercisePriceWarrants	$ 0.20pbio_ExercisePriceWarrants	$ 0.17pbio_ExercisePriceWarrants	$ 0.10pbio_ExercisePriceWarrants	$ 0.17pbio_ExercisePriceWarrants	$ 0.13pbio_ExercisePriceWarrants	$ 0.16pbio_ExercisePriceWarrants	$ 0.13pbio_ExercisePriceWarrants	$ 0.14pbio_ExercisePriceWarrants					$ 0.25pbio_ExercisePriceWarrants			$ 0.25pbio_ExercisePriceWarrants	$ 0.25pbio_ExercisePriceWarrants	$ 0.81pbio_ExercisePriceWarrants
Fair value per warrant	$ 0.24pbio_FairValuePerWarrant1	$ 0.20pbio_FairValuePerWarrant1	$ 0.20pbio_FairValuePerWarrant1	$ 0.13pbio_FairValuePerWarrant1	$ 0.17pbio_FairValuePerWarrant1	$ 0.28pbio_FairValuePerWarrant1	$ 0.20pbio_FairValuePerWarrant1	$ 0.23pbio_FairValuePerWarrant1	$ 0.19pbio_FairValuePerWarrant1	$ 0.17pbio_FairValuePerWarrant1	$ 0.15pbio_FairValuePerWarrant1					$ 0.20pbio_FairValuePerWarrant1			$ 0.20pbio_FairValuePerWarrant1	$ 0.15pbio_FairValuePerWarrant1	$ 0.54pbio_FairValuePerWarrant1
Transaction 1 [Member]
Expected life (in months)												6 months	6 months	6 months	12 months
Expected volatility												142.60%	143.30%	111.70%	117.90%
Risk-free interest rate												0.06%	0.08%	0.07%	0.12%
Exercise price												$ 0.18	$ 0.21	$ 0.14	$ 0.21
Fair value per warrant												$ 0.20	$ 0.19	$ 0.09	$ 0.18
Transaction 2 [Member]
Expected life (in months)												6 months	6 months	6 months	12 months
Expected volatility												142.60%	143.30%	111.70%	117.90%
Risk-free interest rate												0.06%	0.08%	0.07%	0.12%
Exercise price												$ 0.14	$ 0.17	$ 0.14	$ 0.21
Fair value per warrant												$ 0.22	$ 0.22	$ 0.09	$ 0.18
Conversion options revalued [Member]
Expected life (in months)																6 months	2 months
Expected volatility																144.60%	142.20%		144.60%			437.50%	0.80%
Risk-free interest rate																0.17%	0.18%		0.17%			0.01%	0.01%
Exercise price																$ 0.17	$ 0.10		$ 0.17			$ 0.12	$ 0.10
Fair value per warrant																$ 0.18	$ 0.18		$ 0.18			$ 0.16	$ 0.26
Conversion options revalued [Member] \| Transaction 1 [Member]
Expected life (in months)																		6 months
Expected volatility																		114.90%
Risk-free interest rate																		0.12%
Exercise price																		$ 0.14
Fair value per warrant																		$ 0.12
Conversion options revalued [Member] \| Transaction 2 [Member]
Expected life (in months)																		6 months
Expected volatility																		114.90%
Risk-free interest rate																		0.12%
Exercise price																		$ 0.14
Fair value per warrant																		$ 0.12
Conversion options revalued One [Member]
Expected life (in months)																5 months
Expected volatility																148.40%			148.40%
Risk-free interest rate																0.18%			0.18%
Exercise price																$ 0.14			$ 0.14
Fair value per warrant																$ 0.20			$ 0.20
Conversion options revalued Two [Member]
Expected life (in months)																7 months
Expected volatility																132.40%			132.40%
Risk-free interest rate																0.15%			0.15%
Exercise price																$ 0.17			$ 0.17
Fair value per warrant																$ 0.18			$ 0.18
Conversion options revalued Three [Member] \| Transaction 1 [Member]
Expected life (in months)																4 months
Expected volatility																146.00%			146.00%
Risk-free interest rate																0.07%			0.07%
Exercise price																$ 0.20			$ 0.20
Fair value per warrant																$ 0.14			$ 0.14
Conversion options revalued Three [Member] \| Transaction 2 [Member]
Expected life (in months)																4 months
Expected volatility																146.00%			146.00%
Risk-free interest rate																0.07%			0.07%
Exercise price																$ 0.19			$ 0.19
Fair value per warrant																$ 0.16			$ 0.16
Conversion options revalued Four [Member]
Expected life (in months)																			5 months
Expected volatility																149.40%			149.40%
Risk-free interest rate																0.08%			0.08%
Exercise price																$ 0.14			$ 0.14
Fair value per warrant																$ 0.19			$ 0.19
Conversion options revalued Five [Member]
Expected life (in months)																5 months
Expected volatility																150.50%			150.50%
Risk-free interest rate																0.08%			0.08%
Exercise price																$ 0.19			$ 0.19
Fair value per warrant																$ 0.16			$ 0.16
Conversion options revalued Six [Member]
Expected life (in months)																5 months
Expected volatility																149.80%			149.80%
Risk-free interest rate																0.08%			0.08%
Exercise price																$ 0.21			$ 0.21
Fair value per warrant																$ 0.15			$ 0.15
Conversion options revalued Seven [Member] \| Transaction 1 [Member]
Expected life (in months)																6 months
Expected volatility																149.30%			149.30%
Risk-free interest rate																0.08%			0.08%
Exercise price																$ 0.21			$ 0.21
Fair value per warrant																$ 0.16			$ 0.16
Conversion options revalued Seven [Member] \| Transaction 2 [Member]
Expected life (in months)																6 months
Expected volatility																149.30%			149.30%
Risk-free interest rate																0.08%			0.08%
Exercise price																$ 0.20			$ 0.20
Fair value per warrant																$ 0.16			$ 0.16
Conversion options revalued Eight [Member]
Expected life (in months)																6 months
Expected volatility																147.20%			147.20%
Risk-free interest rate																0.08%			0.08%
Exercise price																$ 0.21			$ 0.21
Fair value per warrant																$ 0.15			$ 0.15
Conversion options revalued Nine [Member]
Expected life (in months)																6 months
Expected volatility																144.90%			144.90%
Risk-free interest rate																0.07%			0.07%
Exercise price																$ 0.18			$ 0.18
Fair value per warrant																$ 0.17			$ 0.17
Conversion options revalued Ten [Member] \| Transaction 1 [Member]
Expected life (in months)																6 months
Expected volatility																144.30%			144.30%
Risk-free interest rate																0.06%			0.06%
Exercise price																$ 0.19			$ 0.19
Fair value per warrant																$ 0.17			$ 0.17
Conversion options revalued Ten [Member] \| Transaction 2 [Member]
Expected life (in months)																6 months
Expected volatility																144.90%			144.90%
Risk-free interest rate																0.06%			0.06%
Exercise price																$ 0.14			$ 0.14
Fair value per warrant																$ 0.19			$ 0.19