SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reclassifications, Share based Compensation, Earnings per Common Share, Share Repurchase Program & Restricted Cash (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	May 31, 2017	Dec. 31, 2016	Nov. 30, 2010
Reclassifications
Decrease in cash provided by accounts receivable				$ 312,421
Decrease in cash used in inventories				$ 104,341
Share Repurchase Program
Share repurchase program authorized amount	$ 250,000		$ 250,000
Stock repurchased during the period (in shares)	4,824		4,824
Stock repurchased during the period, amount	$ 16,909		$ 16,909
Stock repurchase program remaining authorized amount	233,091		233,091
Restricted Cash
Outstanding letters of credit	0		0
Restricted Cash	$ 541,795		$ 541,795			$ 0
Stock Options
Options
Balance at the beginning of the period(in shares)			37,750
Granted (in shares)	0		150,000
Exercised (in shares)	0	1,507	0	1,507
Balance at the end of the period (in shares)	187,750		187,750
Exercisable at the end of the period (in shares)	37,750		37,750
Weighted-Average Exercise Price Per Share
Outstanding at the beginning of the period (in dollars per share)			$ 4.75
Granted (in dollars per share)			3.43
Outstanding at the end of the period (in dollars per share)	$ 3.70		3.70
Exercisable at the end of the period (in dollars per share)	$ 4.75		$ 4.75
Weighted-Average Remaining Contractual Term
Outstanding at the end of the period			8 years 4 months 17 days
Exercisable at the end of the period			3 years 5 months 12 days
Aggregate Intrinsic Value
Outstanding at the end of the period	$ 2,465		$ 2,465
Exercisable at the end of the period	2,465		2,465
Additional disclosures
Intrinsic value of options exercised		$ 964		$ 964
Cash received from options exercised		4,822		4,822
Compensation expense (income)	17,280	$ 0	25,920	$ 994
Unrecognized compensation related to unvested awards	$ 181,440		$ 181,440
Weighted-average period over which unrecognized compensation costs expected to be recognized			2 years 7 months 13 days
Earnings per Common Share
Weighted average common stock equivalents from assumed exercise of stock options (in shares)	14,500	14,500	14,500
Outstanding options excluded from computation of income per share as effect would be antidilutive (in shares)	173,250	64,250	173,250
2005 Plan | Stock Options
Options
Granted (in shares)		0		0
2017 Plan | Stock Options
Additional disclosures
Authorized shares					350,000
2010 Plan | Equity Appreciation Rights Plan
Additional disclosures
Compensation expense (income)	$ (4,478)	$ 12,372	$ (3,527)	$ 5,950
Equity Appreciation Rights Plan
Vesting period from the base date			3 years
Shares granted (in units)	0	31,666	100,000	31,666
Accrued compensation	$ 18,600		$ 18,600			45,000
2010 Plan | Equity Appreciation Rights Plan | Other accrued liabilities
Equity Appreciation Rights Plan
Accrued compensation	8,700		8,700			23,000
2010 Plan | Equity Appreciation Rights Plan | Other long-term liabilities
Equity Appreciation Rights Plan
Accrued compensation	$ 9,900		$ 9,900			$ 22,000
2010 Plan | Equity Appreciation Rights Plan | Maximum
Additional disclosures
Authorized shares							1,000,000
Equity Appreciation Rights Plan
Redemption cash payment period			90 days