CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock [Member]	Retained Earnings (accumulated deficit) [Member]	Total
BALANCES at Dec. 31, 2013	$ 779,758	$ 5,103,430	$ 5,883,188
BALANCES (in shares) at Dec. 31, 2013	1,852,565
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock options exercised	$ 64,500	0	$ 64,500
Common Stock options exercised (in shares)	7,524		10,000
Purchase and retirement of Common Stock	$ (6,293)	0	$ (6,293)
Purchase and retirement of Common Stock (in shares)	(400)
Tax benefit (expense) of Common Stock options exercised	$ 11,211	0	11,211
Dividends declared on Common Stock	0	(1,636,790)	(1,636,790)
Stock-based compensation expense	364,880	0	364,880
Net income (loss)	0	(923,634)	(923,634)
BALANCES at Dec. 31, 2014	$ 1,214,056	2,543,006	3,757,062
BALANCES (in shares) at Dec. 31, 2014	1,859,689
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock options exercised	$ 7,671	0	$ 7,671
Common Stock options exercised (in shares)	1,417		6,667
Tax benefit (expense) of Common Stock options exercised	$ (4,638)	0	$ (4,638)
Dividends declared on Common Stock	0	(1,637,150)	(1,637,150)
Stock-based compensation expense	229,093	0	229,093
Net income (loss)	0	(704,670)	(704,670)
BALANCES at Dec. 31, 2015	$ 1,446,182	201,186	$ 1,647,368
BALANCES (in shares) at Dec. 31, 2015	1,861,106		1,861,106
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of Common Stock	$ (8,860)	0	$ (8,860)
Purchase and retirement of Common Stock (in shares)	(845)
Stock-based compensation expense	$ 177,679	0	177,679
Net income (loss)	0	(1,385,902)	(1,385,902)
BALANCES at Dec. 31, 2016	$ 1,615,001	$ (1,184,716)	$ 430,285
BALANCES (in shares) at Dec. 31, 2016	1,860,261		1,860,261