Condensed Statement of Changes in Stockholders' Equity (Unaudited) (Parenthetical)	6 Months Ended
Jun. 30, 2018 shares
Statement Of Stockholders Equity [Abstract]
Net withheld for employee taxes	19,262

The number of restricted shares issued as compensation, net of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes.

No definition available.

Name:	us-gaap_RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration