5. Revolving Line of Credit	3 Months Ended
Mar. 31, 2018
Revolving Line Of Credit
5. Revolving Line of Credit	The Company has a revolving line of credit with a bank providing for demand or short-term borrowings of up to $1,000,000. The line expires on May 31, 2018, and is expected to be renewed under similar terms for a period of one-to-two years. As of March 31, 2018, no amounts were outstanding under this line of credit. The Company did not borrow against this line of credit in the last twelve months.

Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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