SIGNIFICANT ACCOUNTING POLICIES, Earnings Per Share (Details) - USD ($)	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Numerator [Abstract]
Net income (loss)	$ (829,473)	$ (1,718,452)	$ (875,667)	$ 1,519,811	$ 1,115,265	$ 608,701	$ 1,157,743	$ 1,516,656	$ 2,674,399	$ 3,283,100	$ (1,903,781)	[1]	$ 4,398,365	[2]	$ 2,478,444	[2]
Denominator [Abstract]
Basic weighted-average common shares outstanding (in shares)	9,020,187	8,932,246	8,933,648	9,009,752	9,143,746	9,154,215	9,180,076	9,264,446	9,222,028	9,199,173	8,973,246	[1]	9,185,203	[2]	9,242,092	[2]
Dilutive effect of service-based restricted stock awards granted under the plan (in shares)											9,203
Diluted weighted-average common shares outstanding (in shares)	9,020,187	8,932,246	8,933,648	9,011,107	9,144,020	9,160,022	9,182,527	9,264,604	9,223,086	9,201,577	8,973,246	[1]	9,205,008	[2]	9,245,537	[2]
Restricted Stock Awards [Member] | Board of Director [Member]
Denominator [Abstract]
Dilutive effect of service-based restricted stock awards granted under the plan (in shares)											0	[1]	0		177
Restricted Stock Awards [Member] | Employees [Member]
Denominator [Abstract]
Dilutive effect of service-based restricted stock awards granted under the plan (in shares)											0	[1]	19,805		3,268

[1] For the year ended December 31, 2019, there were 9,203 shares excluded from the diluted EPS calculation because the impact of their assumed vesting would be anti-dilutive due to a net loss in that period.

[2] As described in Note 2 to these Consolidated Financial Statements, we have restated the Consolidated Financial Statements.