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Significant Accounting Policies
6 Months Ended
Jun. 30, 2018
Accounting Policies [Abstract]  
Significant Accounting Policies
Note 2.

Significant Accounting Policies

All highly liquid investments with maturity of three months or less when purchased are considered to be cash equivalents. The carrying value of a cash equivalent approximates its fair value based on its nature.

At June 30, 2018, December 31, 2017, and June 30, 2017, all cash and cash equivalents were invested in a United States Treasury money market fund, of which an affiliate of the Company serves as the investment manager.

The Company may from time to time invest in marketable securities that are bought and held principally for the purpose of selling them in the near term and are classified as trading securities. Trading securities are recorded at fair value on the balance sheet in current assets, with the change in fair value during the period included in earnings.

Basic earnings per share is based on the weighted-average number of common shares outstanding during each period. Diluted earnings per share is based on basic shares plus the incremental shares that would be issued upon the assumed exercise of in-the-money stock options and unvested restricted stock using the treasury stock method and, if dilutive.

Recent Accounting Developments

In February 2016, the FASB issued ASU 2016-02, which amends the guidance in U.S. GAAP for the accounting for leases. ASU 2016-02 requires a lessee to recognize assets and liabilities arising from most operating leases in the condensed statement of financial position. It requires these operating leases to be recorded on the balance sheet as right of use assets and offsetting lease liability obligations. This new guidance will be effective for the Company’s first quarter of 2019. The Company is currently evaluating this guidance and the impact it will have on its financial statements and related disclosures but does not expect it to have a material impact.