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Stock Options and Other Compensation | 12 Months Ended
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Dec. 31, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Options and Other Compensation | 7. Stock Options and Other Compensation In May 1989, non-statutory stock options were granted by the Company to four key executive officers for the purchase of shares of common stock. At December 31, 20 20 and 20 19 , options on 767,500 shares were outstanding and exercisable at prices ranging from $1.00 to $1.25. According to their terms, the options have no expiration date.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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