Quarterly report pursuant to Section 13 or 15(d)

Balance sheets (Parenthetical)

v2.4.1.9
Balance sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Statement Of Financial Position [Abstract]    
Allowances for accounts receivable $ 5,084us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 3,745us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Allowances for inventories 128us-gaap_InventoryValuationReserves 141us-gaap_InventoryValuationReserves
Allowances for rental equipment $ 832ingn_RentalEquipmentAllowance $ 832ingn_RentalEquipmentAllowance
Common stock, par value $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 200,000,000us-gaap_CommonStockSharesAuthorized 60,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 19,282,247us-gaap_CommonStockSharesIssued 19,059,364us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 19,282,247us-gaap_CommonStockSharesOutstanding 19,059,364us-gaap_CommonStockSharesOutstanding