Condensed Consolidated Statements of Income and Retained Earnings (Unaudited) - Parenthetical - shares	Mar. 31, 2019	Dec. 31, 2018
Common Stock, Shares, Issued	170,000	170,000
Common Stock, Shares, Outstanding	170,000	170,000
Voting Common Stock
Common Stock, Shares, Issued	1,700	1,700
Common Stock, Shares, Outstanding	1,700	1,700
Nonvoting Common Stock
Common Stock, Shares, Issued	168,300	168,300
Common Stock, Shares, Outstanding	168,300	168,300

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant