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Network
2308301 - Disclosure - Convertible Preferred Stock and Stockholders' Deficit (Tables)
(http://www.obalon.com/role/ConvertiblePreferredStockAndStockholdersDeficitTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001427570 (http://www.sec.gov/CIK)
Equity [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Equity [Abstract]
 
Schedule of Convertible Preferred Stock
Convertible preferred stock prior to automatic conversion of all shares to common stock immediately prior to the closing of the IPO consisted of the following (in thousands, except for shares):
 
Shares
authorized
 
Shares issued
and
outstanding
 
Net
carrying
value
 
Aggregate
liquidation
preference
Series A
2,333,332

 
804,595
 
$
6,773

 
$
7,000

Series B
4,333,332

 
1,494,248
 
6,454

 
6,500

Series C
7,809,006

 
2,668,533
 
16,393

 
16,523

Series C-1
1,418,042

 
480,286
 
4,984

 
5,000

Series D
8,076,436

 
2,732,552
 
20,095

 
20,590

Series E
10,490,611

 
1,916,425
 
15,799

 
15,893

Total
34,460,759

 
10,096,639
 
$
70,498

 
$
71,506

  
Schedule of Outstanding Warrants
The following warrants were outstanding as of December 31, 2016:
 
Shares
 
Weighted-
average
exercise
price
 
Issuance date
 
Expiration date
Common stock warrants (1)
24,224

 
$
6.1918

 
Feb 24, 2012
 
Feb 24, 2019
  
Schedule of Common Stock Reserved for Future Issuance
Common stock reserved for future issuance consists of the following at December 31, 2016:
Stock options issued and outstanding
2,225,684

Authorized for future option grants
1,386,549

Warrants outstanding
24,224

Total
3,636,457