7. Acquisition (Tables)  | 
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2020  | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Combinations [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Purchase Price and Allocation of Purchase | 
 
 (1) – the fair value of the common stock was calculated based on the closing market price of the Company’s common stock at the date of acquisition.  | 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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