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Unaudited Condensed Consolidated Balance Sheets (USD $)
Apr. 30, 2015
Jan. 31, 2015
Dec. 31, 2014
Apr. 30, 2014
Jan. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Current assets:              
Cash $ 479,000us-gaap_Cash $ 1,305,000us-gaap_Cash $ 2,111,000us-gaap_Cash $ 928,000us-gaap_Cash $ 360,000us-gaap_Cash $ 3,000us-gaap_Cash $ 138,000us-gaap_Cash
Accounts receivable 6,000us-gaap_AccountsReceivableNetCurrent 1,000us-gaap_AccountsReceivableNetCurrent 2,000us-gaap_AccountsReceivableNetCurrent        
Inventories 215,000us-gaap_InventoryNet 160,000us-gaap_InventoryNet 138,000us-gaap_InventoryNet        
Prepaid expenses and other current assets 672,000us-gaap_PrepaidExpenseAndOtherAssetsCurrent 239,000us-gaap_PrepaidExpenseAndOtherAssetsCurrent 269,000us-gaap_PrepaidExpenseAndOtherAssetsCurrent     36,000us-gaap_PrepaidExpenseAndOtherAssetsCurrent  
Total current assets 1,372,000us-gaap_AssetsCurrent 1,705,000us-gaap_AssetsCurrent 2,520,000us-gaap_AssetsCurrent     39,000us-gaap_AssetsCurrent  
Property and equipment, net 226,000us-gaap_PropertyPlantAndEquipmentNet 234,000us-gaap_PropertyPlantAndEquipmentNet 235,000us-gaap_PropertyPlantAndEquipmentNet     32,000us-gaap_PropertyPlantAndEquipmentNet  
Intangible assets 142,000us-gaap_IntangibleAssetsNetExcludingGoodwill 149,000us-gaap_IntangibleAssetsNetExcludingGoodwill 150,000us-gaap_IntangibleAssetsNetExcludingGoodwill     150,000us-gaap_IntangibleAssetsNetExcludingGoodwill  
Other assets 50,000us-gaap_OtherAssetsNoncurrent 50,000us-gaap_OtherAssetsNoncurrent 50,000us-gaap_OtherAssetsNoncurrent     150,000us-gaap_OtherAssetsNoncurrent  
Restricted cash 35,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent 35,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent 35,000us-gaap_RestrictedCashAndCashEquivalentsNoncurrent        
Total assets 1,825,000us-gaap_Assets 2,173,000us-gaap_Assets 2,990,000us-gaap_Assets     371,000us-gaap_Assets  
Current liabilities:              
Accounts payable 1,781,000us-gaap_AccountsPayableCurrent 1,152,000us-gaap_AccountsPayableCurrent 486,000us-gaap_AccountsPayableCurrent     229,000us-gaap_AccountsPayableCurrent  
Accrued expenses and other current liabilities 417,000us-gaap_AccruedLiabilitiesAndOtherLiabilities 59,000us-gaap_AccruedLiabilitiesAndOtherLiabilities          
Payroll liabilities 202,000us-gaap_EmployeeRelatedLiabilitiesCurrent 128,000us-gaap_EmployeeRelatedLiabilitiesCurrent 199,000us-gaap_EmployeeRelatedLiabilitiesCurrent     64,000us-gaap_EmployeeRelatedLiabilitiesCurrent  
Related party payables 274,000us-gaap_DueToRelatedPartiesCurrent 218,000us-gaap_DueToRelatedPartiesCurrent 199,000us-gaap_DueToRelatedPartiesCurrent     125,000us-gaap_DueToRelatedPartiesCurrent  
Total current liabilities 2,674,000us-gaap_LiabilitiesCurrent 1,557,000us-gaap_LiabilitiesCurrent 1,367,000us-gaap_LiabilitiesCurrent     771,000us-gaap_LiabilitiesCurrent  
Commitments and contingencies (Note 5)                  
Stockholders' deficit:              
Common stock, $0.001 par value; 90,000,000 shares authorized; 12,026,994 and 11,415,416 shares issued and outstanding at April 30, 2015 and January 31, 2015, respectively 12,000us-gaap_CommonStockValue 11,000us-gaap_CommonStockValue 11,000us-gaap_CommonStockValue     7,000us-gaap_CommonStockValue  
Additional paid in capital 6,336,000us-gaap_AdditionalPaidInCapital 4,416,000us-gaap_AdditionalPaidInCapital 4,372,000us-gaap_AdditionalPaidInCapital     306,000us-gaap_AdditionalPaidInCapital  
Accumulated deficit (14,258,000)us-gaap_RetainedEarningsAccumulatedDeficit (10,634,000)us-gaap_RetainedEarningsAccumulatedDeficit (9,490,000)us-gaap_RetainedEarningsAccumulatedDeficit     (1,683,000)us-gaap_RetainedEarningsAccumulatedDeficit  
Total stockholders' deficit (7,910,000)us-gaap_StockholdersEquity (6,207,000)us-gaap_StockholdersEquity (5,107,000)us-gaap_StockholdersEquity     (1,370,000)us-gaap_StockholdersEquity (46,000)us-gaap_StockholdersEquity
Total liabilities, convertible redeemable preferred stock and stockholder's deficit 1,825,000us-gaap_LiabilitiesAndStockholdersEquity 2,173,000us-gaap_LiabilitiesAndStockholdersEquity 2,990,000us-gaap_LiabilitiesAndStockholdersEquity     371,000us-gaap_LiabilitiesAndStockholdersEquity  
Series A Convertible Redeemable Preferred Stock              
Current liabilities:              
Series A convertible redeemable preferred stock, $0.001 par value; 10,000,000 shares authorized; 4,207,987 issued and outstanding at April 30, 2015 and January 31, 2015 (liquidation preference of $8.2 million as of April 30, 2015) $ 7,061,000us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RedeemableConvertiblePreferredStockMember		 $ 6,823,000us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RedeemableConvertiblePreferredStockMember		 $ 6,730,000us-gaap_TemporaryEquityCarryingAmountAttributableToParent
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RedeemableConvertiblePreferredStockMember