- 定义
          
           The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.
           
          + References
          
           参考1:http://www.xbrl.org/2003/role/presentationref
-Publisher FASB
- 名称会计标准编码
-Topic 718
-subtopic 10.
-Section 50
-Pragraph 2.
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
           
          +细节
          
           
            
             
              | 姓名: | US-GAAP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant | 
             
              | 命名空间前缀: | US-GAAP_ | 
             
              | 数据类型: | xbrli:sharesItemType | 
             
              | Balance Type: | na | 
             
              | Period Type: | instant |