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Stock Buyback Plan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Number of shares, beginning	504,859	319,789
Number of shares purchased	319,863	185,070
Number of shares, ending	824,722	504,859
Cost of Shares
Cost of shares, beginning	$ 1,109,061	$ 724,530
Cost of shares purchased	555,429	384,531
Cost of shares, ending	$ 1,664,490	$ 1,109,061
Average Cost per Share
Average cost per share, beginning	$ 2.20	$ 2.27
Average cost per share purchased	1.74	2.08
Average cost per share, ending	$ 2.02	$ 2.20

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Total cost of shares repurchased divided by the total number of shares repurchased.

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