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Securities (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale securities
Amortized Cost	$ 58,789	$ 58,789
Carrying Value / Estimated Fair Value	4,707,085	5,403,463
Available-for-sale Securities | Common Shares of CV Holdings, Inc.
Available-for-sale securities
Amortized Cost	58,789	58,789
Cumulative Unrealized Gain	205,764	558,499
Carrying Value / Estimated Fair Value	$ 264,553	$ 617,288
Number of shares of common stock purchased	2,939,465	2,939,465

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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